
[Federal Register Volume 82, Number 54 (Wednesday, March 22, 2017)]
[Proposed Rules]
[Pages 14654-14670]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-05463]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R10-OAR-2015-0333; FRL-9959-06-Region 10]


Approval and Promulgation of Implementation Plans; Oregon: 
Permitting and General Rule Revisions

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) proposes to approve, 
and incorporate by reference, specific changes to Oregon's State 
Implementation Plan (SIP) submitted on April 22, 2015. The changes 
relate to the criteria pollutants for which the EPA has established 
national ambient air quality standards--carbon monoxide, lead, nitrogen 
dioxide, ozone, particulate matter, and sulfur dioxide. Specifically, 
the changes account for new federal requirements for fine particulate 
matter, update the major and minor source pre-construction permitting 
programs, and add state-level air quality designations. The changes 
also address public notice procedures for informational meetings, and 
tighten emission standards for dust and smoke. In addition, Oregon 
reorganized rules in the SIP by consolidating definitions, removing 
duplicate provisions, correcting errors, and removing outdated 
provisions. We note that certain rule changes are not appropriate for 
SIP approval, or are inconsistent with Clean Air Act requirements. In 
those cases, we are not approving the revisions.

DATES: Comments must be received on or before April 21, 2017.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R10-
OAR-2015-0333, at http://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e. on the web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Kristin Hall, Air Planning Unit, 
Office of Air and Waste (OAW-150), Environmental Protection Agency--
Region 10, 1200 Sixth Ave., Seattle, WA 98101; telephone number: (206) 
553-6357; email address: hall.kristin@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document, wherever ``we,'' 
``us,'' or ``our'' is used, it is intended to refer to the EPA.

Table of Contents

I. Background
II. Evaluation of Revisions
    A. Division 200: General Air Pollution Procedures and 
Definitions
    B. Division 202: Ambient Air Quality Standards and PSD 
Increments
    C. Division 204: Designation of Air Quality Areas
    D. Division 206: Air Pollution Emergencies
    E. Division 208: Visible Emissions and Nuisance Requirements
    F. Division 209: Public Participation
    G. Division 210: Stationary Source Notification Requirements
    H. Division 212: Stationary Source Testing and Monitoring
    I. Division 214: Stationary Source Reporting Requirements
    J. Division 216: Air Contaminant Discharge Permits
    K. Division 222: Stationary Source Plant Site Emission Limits
    L. Division 224: New Source Review
    M. Division 225: Air Quality Analysis Requirements
    N. Division 226: General Emission Standards
    O. Division 228: Requirements for Fuel Burning Equipment and 
Fuel Sulfur Content
    P. Division 232: Emission Standards for VOC Point Sources
    Q. Division 234: Emissions Standards for Wood Products 
Industries
    R. Division 236: Emissions Standards for Specific Industries
    S. Division 240: Rules for Areas With Unique Air Quality Needs
    T. Division 242: Rules Applicable to the Portland Area

[[Page 14655]]

    U. Division 262: Heat Smart Program for Residential Woodstoves 
and Other Solid Fuel Heating Devices
    V. Division 264: Rules for Open Burning
    W. Division 268: Emission Reduction Credits
    X. Source Sampling Manual and Continuous Monitoring Manual
IV. Proposed Action
    A. Rules Approved and Incorporated by Reference
    B. Rules Approved but Not Incorporated by Reference
    C. Rules Removed
    D. Rules Not Approved
V. Incorporation by Reference
VI. Oregon Notice Provision
VII. Statutory and Executive Order Reviews

I. Background

    Each state has a SIP containing the control measures and strategies 
used to attain and maintain the national ambient air quality standards 
(NAAQS) established by the EPA for the criteria pollutants (carbon 
monoxide, lead, nitrogen dioxide, ozone, particulate matter, sulfur 
dioxide). The SIP is extensive, containing such elements as air 
pollution control regulations, emission inventories, monitoring 
network, attainment demonstrations, and enforcement mechanisms. The SIP 
is a living compilation of these elements and is revised and updated by 
the state over time--to keep pace with federal requirements and to 
address changing air quality issues in the state.
    On April 22, 2015, the Oregon Department of Environmental Quality 
(ODEQ) submitted significant revisions to the Oregon SIP. Oregon made 
changes to 26 Oregon Administrative Rule (OAR) divisions within Chapter 
340, and two source sampling and monitoring manuals related to the 
rules. These changes, effective April 16, 2015, are part of Oregon's 
ongoing efforts to update state air quality rules and the SIP.
    Oregon's April 22, 2015 submission documents the public notice and 
hearing process undertaken by the state, including the state's response 
to comments received. The submission requests EPA approval of the 
following changes to air quality rules in Oregon's federally-approved 
State Implementation Plan (SIP):
     Updates particulate matter emission standards;
     revises permitting requirements for emergency generators 
and small natural gas or oil-fired equipment;
     establishes two new state air quality area designations--
sustainment and reattainment;
     revises the major and minor source pre-construction 
permitting programs;
     changes public processes for informational meetings;
     revises the state's woodstove replacement program for 
small commercial solid fuel boilers regulated under the permitting 
program;
     updates the Oregon Source Sampling Manual, Volumes I and 
II, and the Oregon Continuous Monitoring Manual; and
     removes annual reporting requirements for small gasoline 
dispensing facilities.
    As part of the submission, Oregon included a staff report outlining 
the changes to the state air quality rules and how the revised rules 
have been designed to protect air quality standards. Oregon also 
developed a ``crosswalk'' document--a comprehensive list of the rule 
changes and why they were proposed. The submission, including the staff 
report, crosswalk document, public comments and responses, is located 
in the docket for this action.
    We note that on November 14, 2016, Oregon submitted a letter to 
correct administrative errors in the original April 20, 2015, cover 
letter and attachment. In the letter of correction, Oregon identified 
several rules that were submitted to the EPA in error. These rules were 
not adopted by the Oregon Environmental Quality Commission (EQC) as 
part of the Oregon SIP, and should not have been submitted for SIP 
approval. Oregon also noted one provision that was adopted by the EQC 
and should have been submitted. Please see the November 14, 2016 letter 
of correction in the docket for this action.
    Below, we discuss our review of the submitted changes to the Oregon 
SIP, and our proposed action. We have focused on the substantive rule 
revisions. We did not describe the many typographical corrections, 
minor edits, and renumbering changes. We also note this action does not 
address submitted revisions for small gasoline dispensing facilities 
because we approved the revisions on October 27, 2015 (80 FR 65655).

II. Evaluation of Revisions

A. Division 200: General Air Pollution Procedures and Definitions

Definitions
    Division 200 contains definitions used throughout the air quality 
divisions of Chapter 340 of the OAR, as well as other generally-
applicable rules. However, over time, terms and definitions have also 
been established throughout other divisions. In the submitted changes, 
Oregon re-organized and streamlined rules to move most air quality 
terms and definitions into Division 200. Oregon also moved procedural 
elements out of the definitions in Division 200, and into the specific 
divisions to which they apply. Duplicate and obsolete terms were 
removed. In this section of our evaluation, we discuss key changes to 
existing definitions and new terms used in multiple divisions. 
Substantive new terms, or revisions to definitions that are mostly used 
in a single division, are evaluated in Sections B through X below (in 
the discussion of the changes to the specific division).
    To improve clarity, the state revised key definitions to 
consistently use certain terms--such as ``regulated pollutant,'' 
``control device,'' ``major modification,'' ``major source,'' and 
``unclassified,''--and removed variations on these terms that may have 
created confusion. Oregon also added new definitions to Division 200. 
``Capture efficiency,'' ``control efficiency,'' ``destruction 
efficiency,'' and ``removal efficiency'' were added to differentiate 
amongst similar terms. The state defined the term ``internal combustion 
sources'' to clarify the universe of regulated fuel burning equipment 
under Oregon's rules.
    Oregon also defined the term ``portable,'' as ``designed and 
capable of being carried or moved from one location to another.'' At 
the same time, the state revised the definition of ``stationary 
source'' to include portable sources required to have permits under 
Oregon's air contaminant discharge permitting (ACDP) program at 
Division 216. ``Wood fuel-fired device'' was used in multiple Oregon 
rules, but was never formally defined. The state added the term, 
defined as ``a device or appliance designed for wood fuel combustion, 
including cordwood stoves, woodstoves, and fireplace stove inserts, 
fireplaces, wood fuel-fired cook stoves, pellet stoves and combination 
fuel furnaces and boilers that burn wood fuels.'' The remainder of the 
new definitions established are common dictionary terms.
    Oregon also made substantive changes to several definitions. The 
definition of ``adjacent'' at OAR 340-200-0020(4) was narrowed by 
limiting the use of this defined term (``interdependent facilities that 
are nearby to each other'') to its use in the ``major source'' 
definition at OAR 340-200-0020(91), and in the air contaminant 
discharge permit program (ACDP) at OAR 340-216-0070. In other places 
where the term ``adjacent'' is used, the ODEQ's response to comments 
document in the submission indicates that the ODEQ intends to use the 
dictionary definition.

[[Page 14656]]

    Oregon revised the term ``categorically insignificant activities'' 
at OAR 340-200-0020(23) in several respects. In general, the revisions 
narrow when emissions may be excluded from consideration--in some 
aspects of Oregon's permitting program--as ``insignificant.'' For 
example, Oregon put a cap on the aggregate emissions from fuel burning 
equipment that may be considered categorically insignificant, and also 
restricted when emergency generators may be considered categorically 
insignificant (limiting the exemption to no more than 3,000 horsepower, 
in the aggregate). Oregon also narrowed when emissions from oil/water 
separators in effluent treatment systems may be considered 
categorically insignificant. We note that Oregon did create a new 
category of insignificant emissions--fuel burning equipment brought on 
site for six months or less for construction, maintenance, or similar 
purposes, provided the equipment performs the same function as the 
permanent equipment, and is operated within the source's existing plant 
site emission limit. Importantly, however, insignificant activity 
emissions must be included in determining whether a source is a 
``federal major source'' (OAR 340-200-0020(66)) or a ``major 
modification'' (OAR 340-224-0025(2)(a)(B)) subject to federal major new 
source review (federal major NSR).\1\ In addition, as specified in OAR 
340-200-0020(23), categorically insignificant activities must still 
comply with all applicable requirements.
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    \1\ This includes both the prevention of significant 
deterioration (PSD) new source review permitting program that 
applies in attainment and unclassifiable areas (40 CFR 51.166) and 
the nonattainment major source new source review permitting program 
that applies in nonattainment areas (40 CFR 51.165).
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    Oregon revised the definition of ``modification,'' at OAR 340-200-
0020(93), to differentiate it from the terms ``major modification,'' 
``permit modification,'' and ``title I modification,'' and to make 
clear that it applies to a change in a portion of a source, as well as 
a source in its entirety. The state also simplified the definition of 
``ozone precursor'' at OAR 340-200-0020(107) to remove redundant 
language pointing to the reference method for measuring volatile 
organic compounds (VOCs). Oregon made the same type of change to the 
definition of ``particulate matter'' at OAR 340-200-0020(110). For 
consistency, at OAR 340-200-0020(119) and (120), the short-hand terms 
for coarse and fine particulate matter, ``PM10'' and 
``PM2.5,'' were updated to reference the test method for 
measuring each pollutant. The definition of ``volatile organic 
compounds'' or ``VOC,'' at OAR 340-200-0020(190), was updated to take 
into account changes to the EPA's definition of VOC in the Code of 
Federal Regulations (CFR) at 40 CFR 51.100(s).
    We have evaluated these changes, and the additional changes to 
definitions discussed in Sections B through X below, and propose to 
find that they are consistent with Clean Air Act (CAA) requirements and 
the EPA's implementing regulations. We therefore propose to approve the 
revised and added definitions into the Oregon SIP.
LRAPA Jurisdiction
    A key aspect of the submitted revisions relates to jurisdiction. 
Oregon added new applicability language to Division 200, and throughout 
the air quality rules, to address the applicability of state rules in 
Lane County, the authority of the Lane Regional Air Protection Agency 
(LRAPA) to implement and enforce state rules in the county, and the 
authority of LRAPA to adopt local rules. The changes clarify that the 
ODEQ administers its rules in all areas, except where the Oregon 
Environmental Quality Commission (EQC) has designated the LRAPA to have 
primary jurisdiction in Lane County. The revisions also make clear that 
the LRAPA is authorized to implement state rules within Lane County, 
and may promulgate a local rule in lieu of a state rule provided: (1) 
It is as stringent as the state rule; and (2) it has been submitted to 
and approved by the EQC. We propose to approve the delegation of 
authority language in Division 200, and in all other divisions, because 
it is consistent with CAA section 110(a)(2)(E) requirements for state 
and local air agencies.
    We note that the state also submitted the ODEQ-LRAPA Stringency 
Analysis and Directive, comparing the Oregon state rule revisions to 
the corollary rules generally applicable in Lane County. The analysis 
identifies which of the revised state rules are more stringent, and 
directs the LRAPA to implement them, until such time as the LRAPA 
revises its own rules to be at least as strict. Please see Section IV 
below for a listing of the submitted rule revisions that we propose to 
approve as also applying in Lane County. The ODEQ-LRAPA Stringency 
Analysis and Directive is in Attachment B of the submission, and may be 
found in the docket for this action.
Other Provisions
    The submission also includes changes to the generally applicable 
sections in Division 200. Oregon submitted changes to OAR 340-200-0030 
to clarify that woodstove emissions are regulated, and may also be used 
to create emissions reduction credits. In addition, Oregon added a 
general rule section at OAR 340-200-0035, listing updated versions of 
key reference materials for air quality requirements. We propose to 
approve and incorporate by reference these changes.
    We note that this division contains rules on conflicts of interests 
at OAR 340-200-0100, 0110, and 0120. These rules were not substantively 
changed in the submittal and remain consistent with the CAA 
requirements for such rules at CAA sections 110(a)(2)(E) and 128. We 
propose to approve, but not incorporate by reference, OAR 340-200-0100, 
0110, and 0120, to avoid the potential for confusion or potential 
conflict with the EPA's independent authorities. We note that, 
consistent with our 2003 action, we are not approving OAR 340-200-0050 
because any compliance schedule established by Oregon under this 
provision must be submitted to, and approved by EPA, before it will be 
federally-enforceable or change the requirements of the EPA-approved 
SIP. 40 CFR 51.102(a)(2) and (c) and 260; 68 FR 2891, 2894 (Jan. 22, 
2003).

B. Division 202: Ambient Air Quality Standards and PSD Increments

    Division 202 contains Oregon's ambient air quality standards and 
Prevention of Significant Deterioration (PSD) increments. Oregon 
revised Division 202 by removing obsolete definitions and moving 
definitions used in more than one division to the general definitions 
in Division 200. At OAR 340-202-0050, Oregon added language expressly 
stating that no source may cause or contribute to a new violation of an 
ambient air quality standard or a PSD increment, even if the single 
source impact is less than the significant impact level. Oregon made 
this change to address a court decision vacating and remanding 
regulatory text for the PM2.5 significant impact level. 
Please see Section L below for a more detailed discussion of the basis 
for our determination that this change, along with other related 
changes, adequately addresses the court decision.
    At OAR 340-202-0210, the specific PSD increments were moved from a 
table to the text of the rule for readability. Oregon also clarified 
that PSD increments are compared to

[[Page 14657]]

aggregate increases in pollution concentrations from the new or 
modified source, over the baseline concentration. The state moved 
ambient air quality thresholds for pollutants from Division 224 to this 
division, to centralize ambient standards and thresholds. Finally, 
Oregon consolidated requirements for areas subject to an approved 
maintenance plan, moving ambient standards and thresholds from Division 
224 into a new section, at OAR 340-202-0225. We propose to approve the 
submitted revisions to Division 202 as being consistent with CAA 
requirements.

C. Division 204: Designation of Air Quality Areas

    This division contains provisions for the designation of air 
quality areas in Oregon. In the submission, the state removed a 
reference to ``Indian Governing Bodies'' at OAR 340-204-0060 because 
the ODEQ does not have authority or jurisdiction to regulate them. 
Oregon also replaced an expired oxygenated gasoline requirement at OAR 
340-204-0090 with an updated reference to the applicable maintenance 
plan and its associated provisions.
    A significant change in this division is the introduction of three 
new concepts: ``sustainment areas,'' ``reattainment areas,'' and 
``priority'' sources. See OAR 340-204-0300 through 0320. Both 
sustainment and reattainment areas are new, state-level designations 
designed to add to federal requirements. Oregon has implemented a 
state-level designation in the past--specifically, the maintenance area 
designation. Now, Oregon has developed two new designations intended to 
help areas address air quality problems by further regulating emission 
increases from major and minor sources.
    To designate an area as sustainment or reattainment, the ODEQ will 
undertake the same process as used in the past to designate a state 
maintenance area. The process includes public notice, a rule change, 
and approval by the EQC. Oregon asserts that the new designations and 
associated requirements are intended to help solve air quality issues, 
and do not change attainment planning requirements or federal 
requirements for major stationary sources.
    The sustainment area designation at OAR 340-204-0300 is designed to 
apply to an area where monitored values exceed, or have the potential 
to exceed, ambient air quality standards, but has not been formally 
designated nonattainment by the EPA.\2\ To construct or modify a major 
or minor source in a sustainment area, the owner or operator may need 
to offset new emissions with reductions from other sources, including 
the option of targeting ``priority'' sources, in that area. Priority 
sources are defined as sources causing or contributing to elevated 
emissions levels in the area. This is determined using local airshed 
information, such as emissions inventories and modeling results. A new 
major or minor stationary source seeking to construct in a sustainment 
area may obtain more favorable offsets from priority sources.
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    \2\ As codified at 40 CFR part 81.
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    The reattainment area designation is designed to apply to an area 
that is formally designated nonattainment by the EPA, has an EPA-
approved attainment plan, and also has three years of quality-assured/
quality-controlled monitoring data showing the area is attaining the 
relevant standard. See OAR 340-204-0310. When an area has met 
attainment planning requirements and has attained the standard, the CAA 
requires that a state submit, and the EPA approve, a maintenance plan 
for the next ten years. The state may then request that the EPA 
redesignate the area to attainment. In the interim, Oregon may 
designate the area a reattainment area. The Oregon rules requires that 
all elements of the area's attainment plan continue to apply with a 
reattainment designation. However, minor sources will be subject to 
less stringent state new source review permitting requirements--unless 
the ODEQ has specifically identified a source as a significant 
contributor to air quality problems in the area, or has controlled the 
source and relied on the controls as part of the attainment plan. The 
federal requirements for redesignation remain in place and are 
unchanged.
    We propose to approve the revisions to Division 204 because the 
added rules for state-level designations are consistent with CAA 
requirements and the EPA's implementing regulations for attainment 
planning and major source pre-construction permitting. The changes to 
Oregon's major and minor source permitting program--and our evaluation 
of those changes--are discussed in detail in Section L below.

D. Division 206: Air Pollution Emergencies

    This division establishes criteria for identifying and declaring 
air pollution episodes at levels below the levels of significant harm. 
Oregon submitted minor changes to this division, such as updating 
references to the outdated total suspended particulate matter standard, 
and moving information from four tables into regulatory text. We 
propose to approve these revisions.

E. Division 208: Visible Emissions and Nuisance Requirements

    Division 208 contains provisions regulating visible emissions, 
odor, nuisance, and fugitive emissions from sources. Oregon made 
substantive changes to the visible emission standards at OAR 340-208-
0100 through 0110, supported by a demonstration of why the state 
believes the changes continue to protect air quality. For all point 
sources, the state changed visible emission standards from an aggregate 
exception of three minutes in a 60-minute period to a six-minute block 
average, aligning the form of and test method for Oregon's visible 
emission standards with federal New Source Performance Standards 
(NSPS). At the same time, Oregon made visible emission standards 
applicable to each individual stack or emission point, to preclude 
averaging across the source.
    Oregon also made changes to phase out less stringent visible 
emission limits granted to certain older facilities in operation before 
1970. These sources were required to meet a 40% visible emission limit. 
However, starting in 2020, these sources will be required to meet the 
state's standard 20% visible emissions limit. Wood-fired boilers 
constructed or installed before 1970, and not since modified, also will 
be held to the tighter 20% visible emissions limit starting in 2020, 
except for certain, limited situations.
    Oregon asserted in its SIP submittal that a visible emissions 
standard based on a six-minute average is no more or less stringent 
than a standard based on an aggregate exception of three minutes in any 
hour. Oregon argued that, theoretically, either basis could be more 
stringent than the other, but practically, sources do not typically 
have intermittent puffs of smoke. Oregon also claimed that changing to 
a six-minute average is appropriate because a reference compliance 
method has not been developed for the three-minute standard; EPA Method 
9 results are also reported as six-minute averages; and using a three-
minute standard results in additional costs for sources that also 
monitor visible emissions with continuous opacity monitoring systems 
(COMS).
    Many COMS are designed for six-minute averages, and must be 
modified to record and report data for a three-minute standard. Oregon 
stated in the

[[Page 14658]]

submittal that compliance with a six-minute average can be determined 
with 24 readings (six-minute observation period), while, compliance 
with a three-minute standard may require as many as 240 readings (60-
minute observation period).
    We have evaluated the visible emissions rule changes and Oregon's 
justification for the changes. We propose to approve the revised 
version of OAR 340-208-0110 and the removal of OAR 340-208-0100 because 
we agree that the changes will streamline visible emissions and related 
testing and monitoring requirements for sources, impose more stringent 
requirements on certain older sources, and are, overall, at least as 
protective of the ambient air quality standards as the existing SIP 
requirements.
    The final changes made to this division revise fugitive emission 
requirements at OAR 340-208-0200 through 0210. The revised rules 
require sources to take reasonable precautions to prevent fugitive 
emissions, and may require a fugitive emissions control plan to prevent 
visible emissions from leaving a facility property for more than 18 
seconds in a six-minute period. Compliance is based on EPA Method 22, 
Visual Determination of Fugitive Emissions from Material Sources and 
Smoke Emissions from Flares. Oregon also replaced the specific 
references to ``asphalt'' and ``oil'' in the lists of dust suppressants 
and control measures with the term ``other suitable chemicals,'' to 
discourage the use of oil and asphalt as dust suppressants.
    We propose to approve the revised version of OAR 340-208-0210 and 
the repeal of OAR 340-208-0200 because we have determined that the 
fugitive emissions rule changes are consistent with CAA requirements 
and are expected to improve the effectiveness of controls and 
compliance with emission limits.

F. Division 209: Public Participation

    Division 209 governs public participation in the review of proposed 
permit actions. Oregon revised this division to modernize and clarify 
public notice requirements. The Oregon SIP provides four different 
levels of public process, depending on the type of permitting action, 
with Category I having the least amount of public notice and 
opportunities for public participation and Category IV having the most. 
Most new source review permitting actions are subject to category III, 
for which the ODEQ provides public notice and an opportunity for a 
hearing at a reasonable time and place if requested, or if the ODEQ 
otherwise determines a public hearing is necessary. For the state's 
category IV public process, which applies to Major NSR permitting 
actions, the ODEQ provides an informational meeting that occurs before 
issuing a draft permit for public review and comment. The ODEQ has 
revised the requirements for informational meetings to provide at least 
a 14-day public notice, prior to the scheduled informational meeting. 
The revisions also make clear that although the ODEQ accepts, and will 
consider, comments from the public during the informational meeting, 
the ODEQ does not maintain an official record of the informational 
meeting, or respond in writing to comments provided at the 
informational meeting.
    Oregon also revised this division to address permitting in new 
state-designated sustainment and reattainment areas, added email 
notification as an option, and specified where the public comment 
records would be made available. We note that revisions to the hearing 
procedures in OAR 340-209-0070 were reorganized, moving the notice and 
comment requirements for informational meetings to OAR 340-209-0030.
    We have concluded that the submitted revisions to Oregon's public 
participation rules remain consistent with the CAA and federal 
requirements for public notice of new source review actions in 40 CFR 
51.161 Public availability of information, 40 CFR 51.165 Permit 
requirements, and 40 CFR 51.166 Prevention of significant deterioration 
of air quality, and we propose to approve them. We also propose to 
approve the hearing procedures, but not incorporate them by reference, 
to avoid confusion or potential conflict with the EPA's independent 
authorities.

G. Division 210: Stationary Source Notification Requirements

    Division 210 contains a registration program for sources not 
subject to one of Oregon's operating permit programs, as well as some 
of the requirements for the construction and modification of sources. 
In OAR 340-210-0010, Oregon broadened the applicability of this 
division so that it applies to ``air contaminant sources'' and to 
``modifications of existing portable sources that are required to have 
permits under OAR 340 division 216''--in addition to stationary 
sources. Oregon also revised source registration requirements at OAR 
340-210-0100 to specify in more detail the information an owner or 
operator must submit to register and re-register. In addition, at OAR 
340-210-0205, Oregon made changes to clarify when a Notice of 
Construction application is required--with certain exceptions the state 
has specifically listed.
    Oregon revised construction approval and approval to operate 
provisions at OAR 340-210-0240 and 0250 to spell out when sources may 
proceed with construction or modification, and that construction 
approval does not mean approval to operate the source, unless the 
source is not required to obtain an ACDP under Division 216.
    We are proposing to approve the revisions to Division 210 because 
we have determined they are consistent with CAA requirements, and 
correct or clarify existing source notification requirements, to help 
ensure that changes to sources go through the appropriate approval 
process.

H. Division 212: Stationary Source Testing and Monitoring

    This division contains general requirements for source testing and 
monitoring. Most of the revisions to this division were clarifications 
or updates. For example, Oregon revised Division 212 to clarify that 
the term ``stationary source'' in this division includes portable 
sources that require permits under Division 216. This change is 
consistent with the term as used in other divisions. Oregon also made 
clear that, with respect to stack height and dispersion technique 
requirements, the procedures referenced in 40 CFR 51.164 are the major 
and minor NSR review procedures used in Oregon, as applicable.
    OAR 340-212-0140 of this division sets forth test methods, and 
requires that sampling, testing, or measurements performed pursuant to 
Division 212 conform to the methods in Oregon's Source Sampling Manual, 
Volumes I and II, and Oregon's Continuous Monitoring Manual. The 
manuals, revised as of 2015, have been submitted for approval. As 
discussed below in Section X, we have concluded that the revised 
manuals are consistent with the EPA's monitoring requirements for 
criteria pollutants and we propose to approve them for the purpose of 
the limits approved into the SIP.
    A final change to this division is Oregon's request to remove rules 
that were approved into the Oregon SIP on January 22, 2003 (68 FR 
2891). The specified rules, under the compliance assurance monitoring 
section, apply to title V sources only and implement the requirements 
of 40 CFR parts 64 and 70. We agree with Oregon that these rules are 
not necessary for SIP approval under section 110 of title I of the CAA, 
because

[[Page 14659]]

the rules implement provisions of title V. Therefore, we propose to 
approve Oregon's request to remove OAR 340-212-0200 through 0280 from 
the federally-approved Oregon SIP.

I. Division 214: Stationary Source Reporting Requirements

    This division contains Oregon's provisions for reporting and 
recordkeeping, information requests (CAA section 114 authority), 
credible evidence, business confidentiality, emissions statements, and 
excess emissions. Oregon made substantive changes to several sections 
of this division. First, at OAR 340-214-0010, Oregon changed the 
definition of ``large source'' to align with a recent court decision on 
the regulation of GHG emissions from new and modified major stationary 
sources in attainment and unclassifiable areas, in addition to title V 
sources. Please see our discussion at Section L, below. Oregon also 
removed from the definition of ``large source,'' those sources subject 
to a National Emission Standard for Hazardous Air Pollutants (NESHAP). 
NESHAP reporting requirements are separate and independent of the SIP 
and CAA section 110 criteria pollutant requirements, and we propose to 
approve the revision.
    Oregon revised OAR 340-214-0100 of this division to clarify that 
stationary sources include portable sources required to have ACDPs 
under Division 216. In addition, at OAR 340-214-0114(5), starting on 
July 1, 2015, owners and operators of specific sources must retain 
records of all required monitoring data and supporting information for 
five years. Oregon also revised the section on disclosure of 
information at OAR 340-214-0130, to spell out that emissions data 
cannot be exempted from disclosure as a trade secret. Under OAR 340-
214-0200, with respect to emission statements for VOC and 
NOX sources, Oregon clarified that ``actual emissions 
include, but are not limited, to routine process emissions, fugitive 
emissions, and excess emissions from maintenance, startups and 
shutdowns, equipment malfunction, and other activities.'' We propose to 
approve these revisions because they are consistent with CAA 
requirements.
    Oregon made several revisions to the excess emissions and emergency 
provision requirements in Division 214, at OAR 340-214-0300 through 
0360, that are currently in the SIP, and these revisions are included 
in the submittal that is the subject of this proposed action. First, in 
OAR 340-214-0300, the state clarified that ``emissions in excess of 
applicable standards are not excess emissions if the standard is in an 
NSPS or NESHAP and the NSPS or NESHAP exempts startups, shutdowns and 
malfunctions as defined in the applicable NSPS or NESHAP.'' By its 
terms, this provision only applies to standards in NSPS or NESHAPs, and 
Oregon's incorporation by reference of the federal NSPS and NESHAP 
standards are not included in the SIP. Because this addition relates 
solely to standards that are not in the SIP, the EPA is not approving 
this provision. The state also expanded the prohibition on planned 
startups, shutdowns, and scheduled maintenance--that may result in 
excess emissions during declared air quality alerts, warning or 
emergencies, or during times when residential wood burning is curtailed 
in PM10 nonattainment areas--to include sources in 
PM2.5 nonattainment areas.
    In addition, Oregon made changes to a provision in its SIP that 
contains criteria for determining whether Oregon will take an 
enforcement action for excess emissions (OAR 340-214-0350). In the 
context of the EPA's recent ``SSM SIP Action of 2015,'' the EPA 
evaluated the enforcement discretion provision of OAR 340-214-0350 (re-
codified from OAR 340-028-1450) and found it to be consistent with CAA 
requirements and with the EPA's SSM policy as it applies to SIPs.\3\ 
The EPA's SSM SIP Action of 2015 responded to a petition from the 
Sierra Club requesting that the EPA address concerns about specific 
provisions approved into 39 state SIPs. Sierra Club's petition alleged 
that specific provisions in these states' SIPs were inconsistent with 
the CAA. With respect to Oregon's SIP, the petitioner objected to OAR 
340-028-1450 (recodified as OAR 340-214-0350) which specifies criteria 
to be considered by Oregon in determining whether to pursue enforcement 
action for excess emissions.
---------------------------------------------------------------------------

    \3\ State Implementation Plans: Response to Petition for 
Rulemaking; Restatement and Update of EPA's [Startup, Shutdown and 
Malfunction] SSM Policy Applicable to SIPs; Findings of Substantial 
Inadequacy; and SIP Calls to Amend Provisions Applying to Excess 
Emissions During Periods of Startup, Shutdown and Malfunction: Final 
Rule.'' (June 12, 2015, 80 FR 33839).
---------------------------------------------------------------------------

    In the SSM SIP Action of 2015, we noted that Oregon's provision 
provides that ``[i]n determining whether to take enforcement action for 
excess emissions, DEQ considers, based upon information submitted by 
the owner or operator,'' a list of factors. As discussed in the SSM SIP 
Action of 2015, the EPA has interpreted the CAA to allow states to 
elect to have SIP provisions that pertain to the exercise of 
enforcement discretion by state personnel. See 80 FR 33839, 33980. We 
explained that the provision cited by the petitioners--OAR 340-028-1450 
(recodified as OAR 340-214-0350)--is plainly a statement of enforcement 
discretion, delineating factors to be considered by the ODEQ in 
determining whether to pursue state enforcement for violations of the 
applicable SIP emission limits due to excess emissions. The EPA further 
concluded that there was no language in this Oregon regulation 
suggesting that Oregon's determination to forgo enforcement by the 
state against a source would in any way prevent the EPA or the public 
from demonstrating that violations occurred and taking enforcement 
action. The EPA therefore concluded that Oregon's regulation was 
consistent with the requirements of the CAA and denied the petitioner's 
request to require Oregon to revise its SIP provision. See 80 FR 33839, 
33973 (final action); 78 FR 12459, 12537 (February 22, 2013) (proposed 
action).
    In the submittal that is the subject of this proposed action, 
Oregon has added to OAR 340-214-0350 two criteria that the ODEQ 
considers in determining whether to take enforcement action: (1) 
Whether any federal NSPS or NESHAP apply to the source in question and 
whether the excess emission event caused a violation of the federal 
standard,\4\ and (2) whether the excess emission event was due to an 
``emergency.'' \5\ Because OAR 340-214-0350 is a true enforcement 
discretion provision, rather than an affirmative defense, the addition 
of these criteria does not change the EPA's recent conclusion that this 
provision is approvable, consistent with EPA guidance in the SSM SIP 
Action of 2015 and CAA requirements for SIP provisions.
---------------------------------------------------------------------------

    \4\ Unlike the provision addressing NSPS and NESHAP added to OAR 
340-214-0300 above, which by its terms applies only to NSPS and 
NESHAP, which are not part of the SIP, the provision here is not 
limited to NSPS and NESHAP standards. For example, a SIP provision 
and an NSPS could each have an opacity limit of 20% that applies to 
the same emission unit at a facility. The fact that the NSPS limit 
does not apply during startup of the emission unit could be a 
relevant factor for Oregon to consider in determining whether to 
take an enforcement action for emissions in excess of the SIP 
opacity limit during startup.
    \5\ ``Emergency'' is defined as any situation arising from 
sudden and reasonably unforeseen events beyond the control of the 
owner or operator, including acts of God, which situation requires 
immediate corrective action to restore normal operation, and that 
causes the source to exceed a technology-based emission limit under 
the permit, due to unavoidable increases in emissions attributable 
to the emergency. An emergency does not include noncompliance to the 
extent caused by improperly designed equipment, lack of preventative 
maintenance, careless or improper operation, or operator error. See 
OAR 340-200-020(50).

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[[Page 14660]]

    Further, Oregon changed an affirmative defense provision for excess 
emissions (OAR 340-214-0360) that is in the current SIP. OAR 340-214-
0360 provides, by its title and language, an affirmative defense to 
excess emissions due to an ``emergency.'' The language in this 
provision closely follows language in regulations that govern title V 
operating permit programs, and states are currently authorized under 
the 40 CFR part 70 regulations to include this provision in title V 
permits. See 40 CFR 70.6(g).\6\ The EPA most recently approved this 
provision into the Oregon SIP on December 27, 2011 (76 FR 80747). 
Although this provision was not a subject of the SIP call, the SSM SIP 
Action of 2015 expressly concluded that affirmative defense provisions 
are inconsistent with CAA requirements for SIPs and cannot be approved. 
See 80 FR at 33852.
---------------------------------------------------------------------------

    \6\ The EPA proposed changes to federal title V regulations on 
June 14, 2016 (81 FR 38645). The proposed changes would remove this 
affirmative defense from the title V rules. If finalized, states 
would be required to make changes to their title V programs, where 
applicable, to conform to the revised federal title V regulations.
---------------------------------------------------------------------------

    Oregon revised OAR 340-214-0360 so that it provides an affirmative 
defense available only in penalty actions due to noncompliance with 
technology-based emission limits in title V operating permits; as 
revised, the affirmative defense would no longer be available for 
violations of SIP requirements. Oregon's revision makes OAR 340-214-
0360 consistent with current requirements for title V operating permit 
programs. Oregon has not submitted the revised version of section 0360 
for approval into the SIP and instead, as part of the current 
submittal, has requested that the EPA remove the old version of OAR 
340-214-0360 from the SIP. The removal of this affirmative defense 
provision from the SIP is consistent with EPA guidance in the SSM SIP 
Call and CAA requirements for SIP provisions. We are therefore 
proposing to approve the removal of this title V affirmative defense 
provision from the Oregon SIP.
    We note that Oregon also repealed the sulfur dioxide emission 
inventory requirements at OAR 340-214-0400 through 0430. These 
provisions are not part of the federally-approved Oregon SIP. These 
provisions were repealed as a matter of state law because they were 
replaced with more stringent sulfur dioxide limits established as a 
part of the state's regional haze plan (July 5, 2011; 76 FR 38997).

J. Division 216: Air Contaminant Discharge Permits

    Oregon's Air Contaminant Discharge Permit (ACDP) program is both 
Oregon's federally-enforceable non-title V state operating permit 
program, and also the administrative mechanism used to implement the 
notice of construction and new source review programs. There are six 
types of ACDPs under Oregon's rules: Construction, General, Short Term 
Activity, Basic, Simple, and Standard. The types of ACDPs have not 
changed, but the ODEQ has made some changes and clarifications to the 
criteria and requirements for the various ACDPs. Oregon also revised 
application requirements to set application renewal deadlines, and to 
clarify the required contents of applications.
    The applicability section at OAR 340-216-0020 references the table 
of applicability criteria for the various types of permits in OAR 340-
216-8010. The associated fees are listed at OAR 340-216-8020. Oregon 
made clarifying changes throughout the table in OAR 340-216-8010, and 
made some revisions to the type of ACDP (Basic, General, Simple, or 
Standard) each source category is required to obtain prior to 
construction and operation. Overall, Oregon slightly expanded the list 
of sources required to obtain Basic, General, Simple, or Standard 
ACDPs, with one exception. Oregon removed the requirement that GHG-only 
sources obtain a Standard ACDP, and pay the associated permitting fees, 
consistent with the federal court decision described below in Section 
L.
    Oregon also made revisions, mostly clarifying, to the requirements 
for applying for and issuing certain types of permits, as well as the 
contents of the various permits. For Construction ACDPs at OAR 340-216-
0052, Oregon added a qualifier to the rule that construction commence 
within 18 months after the permit is issued. This deadline now applies 
only if a source is subject to federal major NSR and certain state 
major NSR permitting (discussed in more detail below). Oregon also 
added language to the public notice requirements for a modified 
Construction ACDP, making clear when public notice as a Category I 
permit action is appropriate, as opposed to a Category II permit action 
under OAR 340 Division 209. Oregon spelled out that, although the 
construction permit itself expires, the requirements remain in effect 
and must be added to the subsequent operating permit (ACDP or Title V 
operating permit). See OAR 340-216-0082.
    General ACDP requirements at OAR 340-216-0060 were updated to refer 
to the appropriate public notice procedures, reference the fee class 
for specific source categories, and confirm the procedures the ODEQ 
will use to rescind a source's General ACDP if the source no longer 
qualifies and must obtain a Simple or Standard ACDP instead. Oregon 
also changed the rule to make clear that the ODEQ may rescind an 
individual source's assignment to a General Permit. When the ODEQ 
notifies the source that the department intends to rescind the permit, 
the source has 60 days to submit an application for a Simple or 
Standard ACDP. Oregon also revised General ACDP Attachments to clarify 
public notice requirements and fees.
    For Simple ACDPs at OAR 340-216-0064, it is now clear that the ODEQ 
may determine a source ineligible for a Simple ACDP with generic 
emission limits, and instead, require the source obtain a Standard ACDP 
with source-specific emission limits, as necessary. Oregon has also 
clarified the public notice requirements and fees for Simple ACDPs and 
removed redundant requirements from the Simple ACDP section that are 
also in the applicability and jurisdiction section.
    The Standard ACDP requirements at OAR 340-216-0066 were updated to 
lay out the different application requirements for sources seeking this 
type of permit when they are subject to federal major versus minor NSR. 
Oregon also changed this section to allow sources with multiple 
activities or processes at a single site, covered by more than one 
General ACDP or that has multiple processes, to obtain a Standard ACDP.
    With respect to processing permits, Oregon's provision at OAR 340-
216-0082 now expressly provide that sources with expired ACDP permits 
may continue operating under the expired permit if they have submitted 
a timely and complete renewal application. Sources may also request a 
contested case hearing, if the ODEQ revokes a permit or denies a permit 
renewal. The ODEQ has clarified in a written supplement that 
department-initiated modifications at OAR 340-216-0084 follow the 
public notice procedures for the relevant ACDP permit type spelled out 
in Division 209. Based on the evaluation above and this clarification 
from the ODEQ, we propose to approve the revisions to Division 216.

K. Division 222: Stationary Source Plant Site Emission Limits

    This division contains the Oregon program for managing airshed 
capacity

[[Page 14661]]

through a Plant Site Emission Limit (PSEL). PSELs are used to protect 
ambient air quality standards, prevent significant deterioration of air 
quality, and to ensure protection of visibility. Establishing such a 
limit is a mandatory step in the Oregon permitting process. A PSEL is 
designed to be set at the actual baseline emissions from a source plus 
approved emissions increases and minus required emissions reductions. 
This design is intended to maintain a more realistic emissions 
inventory. Oregon uses a fixed baseline year of 1977 or 1978 (or a 
prior year if more representative of normal operation) and factors in 
all approved emissions increases and required emissions decreases since 
baseline, to set the allowable emissions in the PSEL. Increases and 
decreases since the baseline year do not affect the baseline, but are 
included in the difference between baseline and allowable emissions.
    ``Netting basis'' is a concept in Oregon's program that defines 
both the baseline emissions from which increases are measured--to 
determine if changes are subject to review--as well as the process for 
re-establishing the baseline, after changes have been through the new 
source review permitting process.
    As noted above, Oregon's PSEL program is used, in part, to 
implement NSR permitting. For major NSR, if a PSEL is calculated at a 
level greater than an established significant emission rate (SER) over 
the baseline actual emission rate, an evaluation of the air quality 
impact and major NSR permitting are required. If not, the PSEL is set 
without further review (a construction permit may also be required). 
For minor NSR (State NSR), a similar calculation is conducted. If the 
difference is greater than the SER, an air quality analysis is required 
to evaluate whether ambient air quality standards and increments are 
protected. The air quality analysis results may require the source to 
reduce the airshed impact and/or comply with a tighter emission limit.
    Oregon submitted a number of changes to the PSEL requirements in 
this division. Many of the changes are organizational, centralizing 
requirements related to PSELs in Division 222. We propose to approve 
the organizational changes. Other submitted changes are substantive. 
Oregon revised the criteria for establishing PSELs at OAR 340-222-0035 
through 0090 by consolidating requirements from other sections into 
these provisions, and revising them to take into account the 
differentiated major and State NSR requirements. Oregon also updated 
the source-specific annual PSEL provision, at OAR 340-222-0041, to 
account for PM2.5 and major and State NSR requirements. We 
note that the current SIP-approved rule includes provisions at OAR 340-
222-0041(3)(b) for PSEL increases that were not subject to New Source 
Review. The revised rule revokes those provisions and instead makes 
these PSEL increases subject to the new State New Source Review 
requirements in Division 224 (see new applicability provision in OAR 
340-224-0010(2)(b)(B)). The comprehensive requirements for approval of 
such PSEL increases in sustainment, nonattainment, reattainment, 
maintenance, and attainment/unclassifiable areas are as stringent as 
the current requirements in OAR 340-222-0041(b)(A) through (D).
    Oregon also revised the short-term PSEL requirements at OAR 340-
222-0042 to spell out the process a source must follow to request an 
increase in a short-term PSEL--and when that source must obtain 
offsets, or an allocation, from an available growth allowance in the 
area.
    At OAR 340-222-0046, Oregon clarified the process for setting the 
initial netting basis for PM2.5 and how potential increases 
are limited. The state also made changes to spell out how a source's 
netting basis may be reduced--when a rule, order or permit condition 
requires the reductions--and how unassigned emissions and emissions 
reduction credits are to be addressed. In addition, Oregon clarified 
that a source may retain a netting basis if that source relocates to a 
different site, as opposed to an adjacent site. However, it is only 
allowed if the ODEQ determines the different site is within or affects 
the same airshed, and that the time span between operation at the old 
site and new sites is less than six months.
    At OAR 340-222-0048, Oregon consolidated baseline period and 
baseline emission rate provisions, and indicated when a baseline 
emission rate may be recalculated--limited to circumstances when more 
accurate or reliable emission factor information becomes available or 
when regulatory changes require that additional emissions units be 
addressed. Changes were also made to OAR 340-222-0051, which addresses 
actual emissions, and how to appropriately calculate the mass emissions 
of a pollutant from an emissions source during a specified time period. 
The state revised this provision to account for the changes in the 
program that differentiate major NSR from State NSR.
    We note that Oregon also clarified OAR 340-222-0055, which 
establishes how unassigned emissions are to be treated. The rule was 
revised to state that a source may not use emissions that are removed 
from the netting basis--including emission reductions required by rule, 
order or permit condition--for netting any future permit actions.
    Oregon also revised OAR 340-222-0060, applicable to sources of 
hazardous air pollutants, and submitted it for approval. However, the 
provision is not appropriate for SIP approval because it is related to 
CAA section 112 and hazardous air pollutants, not CAA section 110 and 
the criteria pollutants. Oregon also updated OAR 340-222-0090, which 
addresses the impact on PSEL calculations and permitting requirements 
when sources combine, split, and change primary Standard Industrial 
Code. The changes make clear that sources must qualify to combine, and 
that it will impact the netting basis and SER, and trigger new source 
review and recordkeeping requirements, if applicable.
    With the exception noted below, we are proposing to approve the 
submitted changes to Division 222 because we believe the revisions to 
the PSEL provisions are intended to clarify and strengthen the rules. 
We are not approving OAR 340-222-0060 because it is related to CAA 
section 112 and hazardous air pollutants, not CAA section 110 and the 
criteria pollutants.

L. Division 224: New Source Review

    Parts C and D of title I of the CAA, 42 U.S.C. 7470-7515, set forth 
preconstruction review and permitting program requirements that apply 
to new and modified major stationary sources of air pollutants, known 
as major New Source Review (major NSR). The CAA major NSR programs 
include a combination of air quality planning and air pollution control 
technology program requirements. States adopt major NSR programs as 
part of their SIP. Part C is the Prevention of Significant 
Deterioration (PSD) program, which applies in areas that meet the NAAQS 
(attainment areas), as well as in areas for which there is insufficient 
information to determine whether the area meets the NAAQS 
(unclassifiable areas). Part D is the Nonattainment New Source Review 
(major nonattainment NSR) program, which applies in areas that are not 
in attainment of the NAAQS (nonattainment areas). The EPA regulations 
for SIPs implementing these programs are contained in 40 CFR 51.165 and 
51.166, and appendix S to part 51. As discussed above, regulations 
addressing the EPA's minor new source review (NSR) requirements are set 
forth at 40 CFR 51.160 through 164. States

[[Page 14662]]

generally have more flexibility in designing minor NSR programs. Minor 
NSR programs, however, must still ensure that emissions from the 
construction or modification of a facility, building, structure, or 
installation (or any combination thereof) will not interfere with 
attainment and maintenance of the NAAQS, or violate an applicable 
portion of a control strategy approved into the SIP.
    Oregon's major NSR program has long differed from the federal major 
NSR programs in several respects. Oregon's program does not subject the 
same sources and modifications to major NSR as would the EPA's rules. 
Oregon's program has had lower major source thresholds for sources in 
nonattainment and maintenance areas. The program also requires fugitive 
emissions to be included in applicability determinations for all new 
major sources and modifications to existing major sources. However, 
Oregon also utilizes a PSEL approach to defining ``major'' 
modifications, rather than the contemporaneous net emissions increase 
approach used in the EPA's main, non-PAL major NSR program. The EPA has 
previously determined that, over all, Oregon's major NSR program is at 
least as stringent as the EPA's major NSR program and meets the 
requirements of 40 CFR 51.165 and 51.166. See 76 FR 80747, 80748 
(December 27, 2011) (final action); 76 FR 59090, 59094 (Sept. 23, 2011) 
(proposed action).
    Under Oregon's SIP-approved program, to which the state has made 
changes, both federal major sources and large minor sources have been 
covered by this Division. The submitted changes to Division 224 revise 
this approach and establish distinct components within Division 224, 
referred to as Major New Source Review (Oregon Major NSR--sections 0045 
through 0100) and State New Source Review (State NSR--sections 0245 
through 0270) to help clarify the requirements that apply to federal 
major sources and larger minor sources. Pre-construction review and 
permitting of other minor sources continue to be covered in Division 
210 Stationary Source Notification Requirements, Division 216 Air 
Contaminant Discharge Permits, and Division 222 Plant Site Emission 
Limits.
    As discussed above, Oregon has also created two new state 
designations. Sustainment areas are state-designated areas that are 
violating or close to violating the NAAQS but which are not formally 
designated nonattainment by the EPA. Reattainment areas are state-
designated areas that have been designated nonattainment by the EPA but 
that now have air quality data showing the area is attaining the NAAQS. 
Key changes to the Oregon Major NSR and State NSR programs are 
discussed below.
OAR 340-224-0010 Applicability, General Prohibitions, General 
Requirements, and Jurisdiction
    Oregon has narrowed the scope of sources that are subject to Oregon 
Major NSR in nonattainment and maintenance areas by increasing the 
thresholds, from the significant emission rate (SER) to the major 
source thresholds in the CAA specified for the current nonattainment 
areas in Oregon. See OAR 340-200-0020(66)(d) and OAR 340-224-0010(b). 
At the same time, Oregon's State NSR requirements under Division 224 
apply to the construction of new sources with emissions of a regulated 
air pollutant at or above the SER, as well as increases in emissions of 
a regulated pollutant from existing sources that equal or exceed the 
SER over the netting basis.
    Oregon has divided its State NSR program into two parts: Type A, 
which generally applies in nonattainment, reattainment, and maintenance 
areas, and Type B, for attainment, unclassifiable, and sustainment 
areas. Sources subject to Type A State NSR remain subject to many of 
the same requirements that apply to such sources under Oregon's current 
SIP-approved program in nonattainment \7\ and maintenance areas, 
whereas sources subject to Type B State NSR are subject to requirements 
equivalent to the minor NSR requirements under Oregon's PSEL rule at 
OAR 340-222-0041 in its current SIP.\8\ Because Oregon's changes to the 
definition of ``federal major source'' in nonattainment areas are 
consistent with the federal definition of ``major stationary source'' 
at 40 CFR 51.165 for the designated areas in Oregon, and because Oregon 
has retained most of the characteristics of the Oregon's SIP-approved 
Major NSR permitting program for Type A State NSR, the EPA is proposing 
to approve these revisions.
---------------------------------------------------------------------------

    \7\ Key changes are discussed below in the discussion of State 
NSR.
    \8\ Sources in sustainment areas subject to OAR 340-224-0245(2) 
are also subject to Type A NSR.
---------------------------------------------------------------------------

    The state also made revisions here, and in several other places in 
its rules, to be consistent with revisions to the federal PSD rules 
made in response to a Supreme Court decision \9\ regarding the 
regulation of GHGs (May 7, 2015, 80 FR 26183). Specifically, Oregon 
revised definitions and procedures in Divisions 200, 214, 216, 222 and 
224 to remove GHG-only sources from PSD applicability. Therefore, as 
required by the federal PSD program, a source is now subject to the 
Oregon Major NSR requirements for GHGs in attainment and unclassifiable 
areas only when the source is subject to Oregon Major NSR requirements 
anyway for one or more criteria pollutants. As specified in the federal 
PSD regulations, Oregon's rules continue to require that sources of 
GHGs subject to Oregon Major NSR in attainment and unclassifiable areas 
for a criteria pollutant, are also subject to Oregon Major NSR for 
GHGs.
---------------------------------------------------------------------------

    \9\ Utility Air Regulatory Group v. Environmental Protection 
Agency, 134 S.Ct. 2427 (2014).
---------------------------------------------------------------------------

    Oregon also made clear in this section that a source is subject to 
Division 224 requirements for the designated area in which the source 
is located--for each regulated pollutant, including precursors. 
Finally, Oregon spelled out that sources subject to Division 224 must 
not begin actual construction, continue construction, or operate 
without complying with the requirements of Division 224 and obtaining 
an ACDP permit authorizing construction or operation.
OAR 340-224-0025 Major Modification
    Importantly, Oregon moved the definition of ``major modification'' 
from Division 200 to Division 224, to reflect that the former 
definition was really a procedure for determining whether a major 
modification has or will occur, rather than a true definition. The 
revised definition and procedure are intended to better explain how 
emissions increases and decreases are tracked to determine whether a 
major modification has, or will, occur.
    Oregon also specified that emissions from categorically 
insignificant activities, aggregate insignificant emissions, and 
fugitive emissions must be included in determining whether a major 
modification has occurred. In addition, the state clarified that major 
modifications for ozone precursors, or PM2.5 precursors, 
also constitute major modifications for ozone and PM2.5, 
respectively. Finally, Oregon added language stating that the PSEL, 
netting basis, and emissions changes must be recalculated when more 
accurate or reliable emissions information becomes available to 
determine whether a major modification has occurred.
OAR 340-224-0030 New Source Review Procedural Requirements
    Oregon revised this section to account for differing Oregon Major 
NSR and State NSR procedures. These revisions include when the ODEQ 
will determine whether an application is complete, when a final 
determination will be made, when construction is permitted,

[[Page 14663]]

how to revise a permit and extend it, and when and how the ODEQ will 
terminate an NSR permit. With respect to the provision in the federal 
PSD regulations authorizing extensions to the 18-month construction 
time limitation in 40 CFR 52.21(r)(2) ``upon a satisfactory showing 
that an extension is justified,'' Oregon revised its extension 
provisions to be consistent with recent EPA guidance. This guidance set 
out the EPA's views on what constitutes an adequate justification for 
an extension of the 18-month timeframe under 40 CFR 52.21(r)(2) for 
commencing construction of a source that has been issued a PSD permit. 
See Memorandum from Stephen D. Page, Director of EPA's Office of Air 
Quality Planning and Standards, to Regional Air Division Directors, 
Region 1-10, entitled Guidance on Extension of Prevention of 
Significant Deterioration (PSD) Permits under 40 CFR 52.21(r)(2), dated 
January 31, 2014 (Extension Guidance). In addition, Oregon extended the 
time period for making a final determination on an Oregon Major NSR or 
Type A State NSR permit from six months to one year, to reflect the 
more complex nature of such permitting actions. The one-year time-frame 
for permit issuance is consistent with the EPA's requirements for major 
NSR permitting. See 40 CFR 52.21(q)(2).
OAR 340-224-0038 Fugitive and Secondary Emissions
    This section was moved and amended to account for State NSR 
requirements. For sources subject to Oregon Major NSR and Type A State 
NSR, fugitive emissions are included in the calculation of emission 
rates and subject to the same control requirements and analyses 
required for emissions from identifiable stacks or vents. Secondary 
emissions are not included in potential to emit calculations for Oregon 
Major NSR or Type A State NSR, but once a source is subject to Oregon 
Major NSR or Type A State NSR, secondary emissions must be considered 
in the required air quality impact analysis under Divisions 224 and 
225.
340-224-0045 to 340-224-0070 Major NSR
    Oregon has specified Oregon Major NSR requirements for each of the 
following designations: Sustainment, nonattainment, reattainment, 
maintenance, and attainment/unclassifiable.
Major NSR in Sustainment Areas
    New sources and modifications subject to Oregon Major NSR in 
sustainment areas (areas that are classified as attainment/
unclassifiable by the EPA but have air quality either violating the 
NAAQS or just below the NAAQS) must meet PSD requirements for each 
sustainment pollutant, but must also satisfy additional requirements 
for obtaining offsets and demonstrating a net air quality benefit to 
address the air quality problems in the area, as discussed in more 
detail below. Because such areas are designated as attainment/
unclassifiable by the EPA, requiring compliance with Oregon's PSD 
requirements meets federal requirements. The additional requirements 
for obtaining offsets and demonstrating a net air quality benefit go 
beyond CAA requirements for attainment/classifiable areas and are thus 
approvable.
Major NSR in Nonattainment Areas
    For new sources and modifications subject to Oregon Major NSR in 
nonattainment areas, Oregon reorganized and clarified the requirements, 
including that they apply for each pollutant for which the area is 
designated nonattainment. Lowest Achievable Emission Rate (LAER) and 
offsets continue to be required for such sources and modifications. 
Oregon's submitted revisions tighten offsets required in nonattainment 
areas (except with respect to ozone). Oregon's rules now initially 
require 1.2:1 offsets to emissions in non-ozone areas. If offsets are 
obtained from priority sources in the area, the ratio may be reduced to 
1:1, equivalent to the federal requirement in 40 CFR 51.165(a)(9)(i). 
Oregon's revisions also tighten requirements for sources seeking 
construction permit extensions, and limits extension requests to two 
18-month periods, with certain additional review and re-evaluation 
steps. We note that beyond the federal rules, Oregon's rules extend 
BACT and offset requirements to new and modified minor sources in 
nonattainment areas.
    The EPA is proposing limited, rather than full, approval of the 
Oregon Major NSR program for nonattainment areas because, although the 
submitted revisions strengthen the existing SIP-approved program, we 
cannot fully evaluate the program for the following reasons. On January 
4, 2013, the U.S. Court of Appeals for the District of Columbia, in 
Natural Resources Defense Council (NRDC) v. EPA,\10\ issued a decision 
that remanded the EPA's 2007 and 2008 rules implementing the 1997 
PM2.5 NAAQS. Relevant here, the EPA's 2008 implementation 
rule addressed by the court decision, ``Implementation of NSR Program 
for Particulate Matter Less Than 2.5 Micrometers (PM2.5)'' 
(the 2008 NSR PM2.5 Rule),\11\ promulgated NSR requirements 
in both nonattainment areas (nonattainment NSR) and attainment/
unclassifiable areas (PSD). The court concluded that the EPA had 
improperly based the implementation rule solely upon the requirements 
of part D, subpart I, of the CAA, and had failed to address the 
requirements of part D, subpart 4, which establishes additional 
provisions for particulate matter nonattainment areas. The court 
ordered the EPA to ``repromulgate these rules pursuant to subpart 4 
consistent with this opinion.'' Id. at 437.
---------------------------------------------------------------------------

    \10\ 706 F.3d 428 (D.C. Cir.).
    \11\ 73 FR 28321 (May 16, 2008).
---------------------------------------------------------------------------

    As a result of the court's decision, the EPA withdrew its guidance 
for implementing the 2006 PM2.5 standard \12\ because the 
guidance was based largely on the remanded rule promulgated to 
implement the 1997 PM2.5 standard.\13\ On June 2, 2014, the 
EPA promulgated the Identification of Nonattainment Classification and 
Deadlines for Submission of State Implementation Plan (SIP) Provisions 
for the 1997 Fine Particle (PM2.5) National Ambient Air 
Quality Standards (NAAQS) and 2006 PM2.5 NAAQS (79 FR 
31566). This rule promulgated classifications and deadlines under 
subpart 4, part D, title I of the CAA for 2006 PM2.5 
nonattainment areas, including two areas in Oregon, specifically the 
Klamath Falls and Oakridge PM2.5 nonattainment areas. On 
August 24, 2016, the EPA finalized the Fine Particulate Matter National 
Ambient Air Quality Standards: State Implementation Plan Requirements 
(81 FR 58010). The EPA has now set revised requirements for 
PM2.5 nonattainment areas, including new rules for major new 
and modified sources. The EPA also stated its intent to provide states 
with guidance regarding precursor demonstrations to supplement the new 
rules. Because these changes only recently became effective on October 
24, 2016, and the EPA's guidance is still forthcoming, we intend to 
work with Oregon to address the requirements of subpart 4 for 
PM2.5 in a separate, future action. In this action, as 
stated above, we propose a limited approval of the revisions to the 
Oregon Major NSR program in nonattainment areas as

[[Page 14664]]

strengthening the current federally-approved program.
---------------------------------------------------------------------------

    \12\ Memorandum from Stephen D. Page, Implementation Guidance 
for the 2006 24-Hour Fine Particulate (PM2.5) National 
Ambient Air Quality Standards (Mar. 2, 2012).
    \13\ Memorandum from Stephen D. Page, Withdrawal of 
Implementation Guidance for the 2006 24-Hour Fine Particle 
(PM2.5) National Ambient Air Quality Standards (Jun. 6, 
2013).
---------------------------------------------------------------------------

Major NSR in Reattainment Areas
    In reattainment areas (areas meeting the NAAQS but not yet 
redesignated to attainment), new sources and modifications subject to 
Oregon Major NSR must continue to meet all nonattainment Oregon Major 
NSR requirements for the reattainment pollutant. In addition, to ensure 
air quality does not again deteriorate, Oregon now requires that 
sources subject to Oregon Major NSR also meet other requirements for 
each reattainment pollutant. Specifically, the owner or operator of the 
source must demonstrate the source will not cause or contribute to a 
new violation of the ambient air quality standard or PSD increment by 
conducting an air quality analysis as outlined in Division 225.
Major NSR in Maintenance Areas
    In maintenance areas, as under Oregon's current federally-approved 
SIP, new sources and modifications subject to Oregon Major NSR must 
continue to comply with Oregon Major NSR requirements for attainment/
unclassifiable areas (i.e., PSD) and also conduct a demonstration or 
obtain allowances to ensure a net air quality benefit in the area. 
Rather than setting out the specific PSD requirements in this section, 
however, this section now simply references the PSD requirements at OAR 
340-224-0070.
Major NSR in Attainment/Unclassifiable Areas (PSD)
    For the construction of new sources and modifications subject to 
Oregon Major NSR in attainment or unclassifiable areas, Oregon revised 
its rules to address several court decisions impacting federal PSD 
rules. First, as discussed above, Oregon revised definitions and 
procedures in Divisions 200, 214, 216, 222 and 224 to remove GHG-only 
sources from PSD applicability. Therefore, as required under the EPA's 
federal PSD program, a source is now subject to the Oregon Major NSR 
requirements for GHGs only when the source also is subject to Oregon 
PSD requirements for one or more criteria pollutants. As required, 
Oregon's rules continue to require that sources of GHGs subject to 
Oregon's PSD rules for a criteria pollutant are also subject to PSD for 
GHGs.
    Second, Oregon revised its requirements for preconstruction 
monitoring to address another court decision and resulting revisions to 
the EPA's PSD rules. On October 20, 2010, the EPA promulgated the 2010 
PSD PM2.5 Implementation Rule revising the federal 
significant monitoring concentration (SMC) and SILs for 
PM2.5 (75 FR 64864). On January 22, 2013, the U.S. Court of 
Appeals for the District of Columbia, in Sierra Club v. EPA,\14\ issued 
a judgment that, among other things, vacated the provisions adding the 
PM2.5 SMC to the federal regulations at 40 CFR 
51.166(i)(5)(i)(c) and 52.21(i)(5)(i)(c). In its decision, the court 
held that the EPA did not have the authority to use SMCs to exempt 
permit applicants from the statutory requirement in CAA section 
165(e)(2) that ambient monitoring data for PM2.5 be included 
in all PSD permit applications. Although the PM2.5 SMC was 
not a required element, where a state program contained an SMC and 
applied it to allow new permits without requiring ambient 
PM2.5 monitoring data, the provision would be inconsistent 
with the court's opinion and CAA section 165(e)(2).
---------------------------------------------------------------------------

    \14\ 703 F.3d 458 (D.C. Cir. 2013).
---------------------------------------------------------------------------

    At the EPA's request, the decision also vacated and remanded the 
portions of the 2010 PSD PM2.5 Implementation Rule that 
revised 40 CFR 51.166 and 40 CFR 52.21 related to SILs for 
PM2.5. The EPA requested this vacatur and remand of two of 
the three provisions in the EPA regulations that contain SILs for 
PM2.5 because the wording of these two SIL provisions (40 
CFR 51.166(k)(2) and 40 CFR 52.21(k)(2)) was inconsistent with the 
explanation of when and how SILs should be used by permitting 
authorities that we provided in the preamble to the Federal Register 
publication when we promulgated these provisions. Specifically, the EPA 
erred because the language promulgated in 2010 does not provide 
permitting authorities the discretion to require a cumulative impact 
analysis notwithstanding that the source's impact is below the SIL, 
where there is information that shows the proposed source would lead to 
a violation of the NAAQS or increments. The third SIL provision (40 CFR 
51.165(b)(2)) was not vacated and remains in effect. On December 9, 
2013, the EPA removed the vacated PM2.5 SILs and SMC 
provisions from federal PSD regulations (78 FR 73698). The EPA is 
starting a rulemaking on the PM2.5 SILs to address the 
court's remand. In the meantime, we advised states to remove the 
vacated provisions from state PSD regulations.
    In response to the vacatur and remand, Oregon submitted revisions 
to several divisions, including Divisions 200, 202, 224 and 225. Oregon 
revised the PM2.5 SMC to zero, as the EPA did, to address 
this issue in the federal PSD regulations. Oregon also revised the 
definition of ``significant impact levels'' or ``SIL'' in state rules, 
removed the vacated language and added text to make clear that ``no 
source may cause or contribute to a new violation of an ambient air 
quality standard or PSD increment even if the single source impact is 
less than the significant impact level.'' We are proposing to approve 
Oregon's revisions as consistent with the court decision.
    Oregon also revised its PSD rules to address a court decision 
vacating provisions of EPA's 2011 biogenic deferral. In 2011, the EPA 
revised the definition of ``subject to regulation'' at 40 CFR 
52.21(b)(49)(ii)(a) to defer PSD permitting requirements for carbon 
dioxide (CO2) emissions from bioenergy and other biogenic 
sources for three years. See Deferral for CO2 Emissions from 
Bioenergy and Other Biogenic Sources under the Prevention of 
Significant Deterioration (PSD) and Title V Programs; Final Rule (July 
20, 2011, 76 FR 43490) (Biogenic CO2 Deferral Rule)). On 
July 12, 2013, the U.S. Court of Appeals for the District of Columbia, 
in Center for Biological Diversity v. EPA,\15\ vacated the provisions 
of the Biogenic CO2 Deferral Rule. The deferral expired on 
July 21, 2014, and by its terms is no longer in effect. The current 
definition of ``greenhouse gases or GHGs'' in Division 200 states that 
CO2 emissions from the combustion or decomposition of 
biomass is not included in the definition, except to the extent 
required by federal law. We are proposing to approve Oregon's rules as 
consistent with current federal law, under which CO2 
emissions from biogenic sources are regulated under Oregon's PSD 
program to the same extent as CO2 emissions from any other 
source.
---------------------------------------------------------------------------

    \15\ 722 F.3d 401 (D.C. Cir. 2013).
---------------------------------------------------------------------------

    In addition to revisions addressing these three court decisions, 
Oregon also eliminated language that allowed the substitution of post-
construction monitoring for preconstruction monitoring. Oregon added an 
exemption from the preconstruction ambient air monitoring requirement, 
with the ODEQ's approval, if representative or conservative background 
concentration data is available, and the source demonstrates that such 
data is adequate to determine that the source would not cause or 
contribute to a violation of an ambient air quality standard or any 
applicable PSD increment. These revisions, along with the other 
existing provisions regarding preconstruction monitoring in Oregon's 
PSD regulations,

[[Page 14665]]

are consistent with 40 CFR 51.166(m)(iii) and therefore approvable.
    Finally, Oregon added the requirement to demonstrate a net air 
quality benefit for subject sources that will have a significant impact 
on air quality in a designated area other than the area in which the 
source is located. This demonstration of net air quality benefit is 
beyond federal PSD requirements, and will be discussed in more detail 
below.
OAR 340-224-0245 to 340-224-0270, State NSR
    Division 224 now also specifies State NSR requirements for 
sustainment, nonattainment, reattainment, maintenance, and attainment/
unclassifiable areas. For sources that emit between the SER and 100 
tons per year in nonattainment and maintenance areas (Type A State NSR 
sources), Oregon has relaxed some of the requirements, as compared to 
its current SIP, that historically went beyond federal requirements. In 
nonattainment areas, if the increase in emissions from the source is 
the result of a major modification,\16\ BACT rather than LAER is now 
required. In maintenance areas, Type A State NSR sources are no longer 
required to conduct preconstruction monitoring to support the ambient 
air impact analysis for the source. In addition, in both nonattainment 
and maintenance areas, Oregon's new State NSR rules allow a reduction 
of the offset ratio if some of the offsets come from sources that are 
contributing to air quality problems in the area (which historically 
have been woodstoves). In sustainment and reattainment areas, Oregon's 
new State NSR requirements go beyond CAA requirements for minor NSR 
programs by requiring a demonstration of a net air quality benefit 
(discussed below).
---------------------------------------------------------------------------

    \16\ Oregon uses the term ``major modification'' for physical 
and operational changes that result in significant increases to both 
existing major and existing minor sources.
---------------------------------------------------------------------------

    Because BACT, LAER, pre-construction monitoring, and offsets are 
not required components of a State's SIP-approved minor NSR program, 
and because the offset requirements now provide sources with incentives 
to obtain offsets from sources found to be specifically contributing to 
air quality problems in the area, the EPA proposes to find that 
Oregon's minor NSR program continues to meet CAA requirements for 
approval.
OAR 340-224-0500 to 340-224-0540, Net Air Quality Benefit Emission 
Offsets
    Oregon moved the net air quality benefit emission offset rules from 
Division 225 to Division 224 to better consolidate new source review 
requirements. The CAA requires that, for major nonattainment NSR, the 
proposed major source or major modifications must obtain emissions 
reductions of the affected nonattainment pollutant from the same source 
or other sources in the area to offset the proposed emissions increase. 
See CAA section 173(c). Consistent with that requirement, the EPA's 
major nonattainment NSR regulations require that major sources and 
major modifications in nonattainment areas obtain emissions offsets at 
a ratio of at least 1 to 1 (1:1) from existing sources in the area to 
offset emissions from the new or modified source. 40 CFR 
51.165(a)(9)(i).
    Oregon revised the state's criteria for demonstrating a net air 
quality benefit. In addition to the incentives provided to sources 
subject to Type A State NSR in sustainment and reattainment areas to 
obtain offsets from priority sources discussed above, Oregon made an 
additional change. The state revised its rules to provide incentives 
for major sources to use priority source offsets for Oregon Major NSR 
sources in nonattainment and reattainment areas by increasing the 
required offset ratio for major sources to 1.2:1 from the current 1:1. 
If a source subject to Oregon Major NSR obtains offsets of some 
emissions increases from priority sources, the ratio may be reduced to 
no less than 1:1, the minimum offset level under the federal major 
nonattainment NSR program.
    We most recently reviewed and took action on submitted changes to 
Division 225 on December 27, 2011 (76 FR 80747). Although Oregon 
adopted the EPA's recommended inter-pollutant offset ratios for 
PM2.5 and submitted them to the EPA, we were unable to 
approve them in our 2011 action because, between the time that Oregon 
adopted the ratios and our 2011 action, the EPA granted a petition to 
reconsider the ratios and changed its policy. As a result, in 2011 we 
deferred action to give Oregon time to demonstrate that the ratios 
protected ambient air quality standards in Oregon, or otherwise revise 
the ratios--in line with the EPA's July 21, 2011, memorandum updating 
the inter-pollutant offset policy.\17\ Oregon did revise its rules, 
moved these provisions to Division 224, at OAR 340-224-0510, and 
submitted the changes in the April 2015 submission evaluated in this 
action. Specifically, Oregon removed the state-wide PM2.5 
inter-pollutant offset ratios, and instead, added rule language to 
require that they be calculated on a case-by-case basis. However, the 
EPA's revised inter-pollutant offset policy states that a state should 
make a specific demonstration for set ratios in a SIP submittal.\18\ 
Oregon's submittal does not include a demonstration for set ratios in 
specific areas. With the exception of OAR 340-224-0510(3), we are 
proposing to approve the revisions to Oregon's net air quality benefit 
emissions rules (OAR 340-224-0500 through 0540).
---------------------------------------------------------------------------

    \17\ Gina McCarthy, EPA Administrator. ``Revised Policy to 
Address Reconsideration of Inter-pollutant Trading Provisions for 
Fine Particles (PM2.5),'' Memorandum to Regional 
Administrators, July 21, 2011.
    \18\ Ibid.
---------------------------------------------------------------------------

Summary
    We are proposing to approve the revisions to Division 224, with the 
exceptions and limitations noted above, because we have determined 
that, in conjunction with other provisions in Divisions 200, 222, and 
225, the revisions are consistent with the requirements of the EPA's 
PSD, major nonattainment NSR, and minor NSR permitting programs. See 40 
CFR 51.160 through 161, 51.165, and 51.166.

M. Division 225: Air Quality Analysis Requirements

    This division contains the air quality analysis requirements, which 
are primarily used in Oregon's NSR program. By its terms, it does not 
apply unless a rule in another division, primarily Division 224, refers 
to Division 225 or a rule in Division 225.
    Substantive changes include revising the definition of ``allowable 
emissions'' at OAR 340-225-0020(1) to add ``40 CFR part 62'' to the 
list of referenced standards and clarifying the definition of 
``baseline concentration year'' at OAR 340-225-0020(3) that varies 
depending on the pollutant for a particular designated area. Oregon 
revised the definitions of ``competing PSD increment consuming source 
impacts'' and ``competing NAAQS [national ambient air quality 
standards] source impacts,'' at OAR 340-225-0020(4) and (5) 
respectively, to broaden the reference to include all of Oregon's 
ambient air quality standards at Division 202 (which include the 
NAAQS)\19\ and to specify that in calculating these concentrations, 
sources may factor in the distance from the new or modified source to 
other emission sources (range of influence or ROI), spatial 
distribution of existing emission sources, topography, and

[[Page 14666]]

meteorology. Oregon also clarified and reorganized the defined ROI 
formula at OAR 340-225-0020(10). The ROI is the distance from the new 
or modified source or source impact area to other emission sources that 
could impact that area. The ROI and source impact area are used to 
predict the air quality impacts of a new or modified source. Oregon 
continues to limit the maximum ROI to 50 kilometers and has moved the 
constant values in the ROI formula from the table at the end of the 
division into the text of the rule.
---------------------------------------------------------------------------

    \19\ Our approval of OAR 340-225-0020(4) and (5) would not 
extend to those ambient standards in Division 202 that we have 
excluded from our approval.
---------------------------------------------------------------------------

    Oregon revised the PSD requirements to align with the court 
decision vacating and remanding the PM2.5 SIL. Please see 
Section L above for a discussion of the court decision. Division 225 
now includes language stating that application of a SIL as a screening 
tool does not preclude the ODEQ from requiring additional analysis to 
evaluate whether a proposed source or modification will cause or 
contribute to a violation of an air quality standard or PSD increment.
    The state also updated the PSD requirements for demonstrating 
compliance with air quality related values. Oregon made clear that, if 
applicable, the analysis applies to each emission unit that increases 
the actual emissions of a regulated pollutant above the portion of the 
netting basis attributable to that emission unit. The state also 
spelled out that the term ``air quality related values'' includes 
visibility, deposition, and ozone impacts. In addition, the state 
mandated a visibility analysis for sources impacting the Columbia River 
Gorge National Scenic Area (Gorge), instead of recommending sources 
also evaluate potential impacts on the Gorge. We propose to approve the 
revisions to Division 225 as meeting CAA requirements, including the 
EPA's major NSR permitting regulations at 40 CFR 51.165 and 51.166, and 
the regional haze requirements at 40 CFR part 51, subpart P.
    As discussed above, Oregon repealed the Requirements for 
Demonstrating a Net Air Quality Benefit section at OAR 340-225-0090, 
after moving the requirements into the Net Air Quality Benefit Emission 
Offsets section in Division 224, which we described above. We propose 
to approve the repeal of OAR 340-225-0090.

N. Division 226: General Emission Standards

    This division contains emission standards and requirements of 
general applicability, including requirements for highest and best 
practicable treatment and control, operating and maintenance, typically 
achievable control technology, additional requirements imposed on a 
permit by permit basis, alternative emission limits (bubbles), and 
particulate emission limits for process equipment and other sources 
(other than fuel or refuse burning equipment or fugitive emissions). In 
OAR 340-226-0120, Oregon clarified that pressure drop and ammonia slip 
are operational, maintenance and work practice requirements that the 
ODEQ may establish in a permit condition or notice of construction 
approval. Oregon also revised OAR 340-226-0130 Typically Achievable 
Control Technology by moving procedural requirements from the 
definitions at Division 200 to this division, and revising them to 
account for Oregon's changes to NSR, Major NSR and Type A State NSR.
    Notably, the state made substantive revisions to the particulate 
emission limits under the Grain Loading Standards section starting at 
OAR 340-226-0200. Oregon's stated goal was to reduce emissions from 
certain sources built before June 1970. The rules phase in tighter 
standards for these older sources, based on typically available control 
technology, such as multiclones. The revisions generally tighten grain 
loading standards for existing sources from 0.2 grains per dry standard 
cubic foot (gr/dscf) to between 0.10 and 0.15 gr/dscf depending on 
whether there is existing source test data for the source and what that 
data shows. Oregon set timelines to achieve these rates depending on 
whether sources were built before or after June 1, 1970. Existing 
sources that operate equipment less frequently (less than 867 hours a 
year) must meet less stringent standards. For new sources, the ODEQ has 
increases the stringency of the grain loading standard by adding a 
significant digit, revising the standard from 0.1 gr/dscf to 0.10 gr/
dscf. We propose to approve the revisions to Division 226 because they 
tighten particulate emission standards and strengthen the SIP.

O. Division 228: Requirements for Fuel Burning Equipment and Fuel 
Sulfur Content

    These rules establish generally applicable requirements for fuel 
burning equipment, including limits on sulfur content and particulate 
matter. Oregon removed a coal space-heating exemption that expired in 
1983 and clarified that sulfur dioxide emissions from recovery furnaces 
are not subject to this division but are instead regulated under the 
SO2 emissions limits for wood products industries in 
Division 234.
    Oregon revised Division 228 to tighten grain loading standards for 
fuel burning equipment in the same manner as in Division 226, discussed 
above. We propose to approve the revisions because they tighten 
particulate emission standards for fuel burning equipment and 
strengthen the SIP. We note that revisions to this division related to 
the federal Acid Rain Program (OAR 340-228-0300, and -0400 through -
0530) were not submitted, but were included to show a complete record 
of the revisions. These rules are not a part of Oregon's federally-
approved SIP.

P. Division 232: Emission Standards for VOC Point Sources

    This division restricts emissions of VOC from new and existing 
listed source categories in the Portland and Medford Air Quality 
Maintenance Areas and in Salem-Keizer in the Salem-Keizer Area 
Transportation Study Area as well as any source in these areas with the 
potential to emit over 100 tons of VOC per year. Consistent with CAA 
requirements, Oregon has clarified that the determination of whether a 
source has a potential to emit over 100 tons of VOC per year is made 
before consideration of add-on controls.
    Oregon expanded the section on marine tank vessels so that the 
marine vapor control requirements now apply to marine tank vessel 
loading of other volatile organic liquids in addition to gasoline, 
effective July 1, 2018. The loading of organic liquids stored in 
pressurized tanks, such as liquefied natural gas and propane, are not 
included in this expansion. Consistent with the change discussed above, 
the state also made clear that, in determining whether a course is 
subject to the rules on surface coating in manufacturing, determination 
of the source's potential to emit is made before consideration of add-
on controls. Oregon also requires records under the surface coating in 
manufacturing rule to be retained for five years rather than two, 
consistent with title V. Finally, Oregon also clarified that 
determining potential to emit for rotogravure and flexographic printing 
sources subject to VOC requirements is made before consideration of 
add-on controls. We propose to approve the changes described above 
because they strengthen the SIP and are consistent with the CAA.

Q. Division 234: Emissions Standards for Wood Products Industries

    Oregon repealed two sections of this division--the neutral sulfite 
semi-chemical section (OAR 340-234-0300

[[Page 14667]]

through 0360) and the sulfite pulp mill section (OAR 340-234-0400 
through 0430)--because sources of this type no longer exist in the 
state. Any new sources constructed would be subject to new source 
review, as well as applicable NSPS and NESHAP requirements. As a 
result, Oregon removed terms no longer used in this division, including 
acid absorption tower, acid plant, average daily production, blow 
system, continual monitoring, continuous-flow conveying system, 
modified wigwam waste burner, neutral sulfite semi-chemical (NSSC) pulp 
mill, production, spent liquor incinerator, sulfite mill, and sulfur 
oxides.
    In the Kraft Pulp Mills section at OAR 340-234-0200 through 0270, 
the state revised what was formerly referred to as ``significant 
upgrading'' of equipment for purposes of determining whether more 
restrictive standards apply. This change was intended to enhance the 
enforceability of the requirement to meet more restrictive emission 
standards based on changes to the source. This section was also revised 
to update the non-recovery furnace opacity limit averaging times to six 
minutes in lieu of the previous three-minute exception. In making this 
change, Oregon relied on the same rationale discussed in Section E. 
above.
    Oregon also added source test methods for particulate matter and 
required demonstrations of oxygen concentrations in recovery furnace 
and lime kiln gases. Under the Reporting section at OAR 340-234-0250, 
the state removed the alternative sampling option where 
transmissometers are not feasible because all pulp mills in Oregon now 
have transmissometers.
    Oregon made minor changes to OAR 340-234-0270, a provision 
authorizing the ODEQ to determine that upset conditions at a subject 
source are chronic and correctable by the installation of new or 
modified process or control equipment and requiring a program and 
schedule to effectively eliminate the deficiencies causing the upset 
conditions. This provision makes clear that such upsets causing 
emissions in excess of applicable limits may be subject to a civil 
penalty or other appropriate action. The EPA is proposing to reapprove 
this provision with these changes based on the understanding that it 
does not excuse excess emissions from enforcement action seeking 
penalties or injunctive relief.
    Oregon moved the test method for the opacity limit for veneer and 
plywood manufacturing operations from the definitions into the 
requirement itself (OAR 340-234-0510(1)(b)(A)). The state also added 
test methods for moisture content to the emission standards for veneer 
and plywood manufacturing requirements. For hardboard tempering ovens, 
Oregon revised the emission requirements to require that alternative 
temperatures be approved using the procedures in the federal NESHAP for 
Plywood and Composite Wood Products, 40 CFR part 63, subpart DDDD. 
Because these rules did not include testing and monitoring 
requirements, Oregon added a new section, OAR 340-234-0540 Testing and 
Monitoring.
    We propose to approve the changes to Division 234, except with 
respect to requirements regulating total reduced sulfur and odor, 
because they strengthen the SIP and are consistent with CAA 
requirements. Total reduced sulfur and odor requirements are not 
appropriate for SIP approval because they are not criteria pollutants 
under title I of the CAA. We therefore are excluding from approval into 
the Oregon SIP the references to total reduced sulfur and odor in 
definitions at OAR 340-234-0010(8) and (10), and in Kraft Pulp Mill 
rules at OAR 340-234-0210(1), OAR 340-234-0220(2), OAR 340-234-0240(1), 
and OAR 340-234-0250(1) and (2).

R. Division 236: Emissions Standards for Specific Industries

    Under Division 236, Oregon repealed rules designed to regulate 
aluminum (OAR 340-236-0100 through 0150) and laterite ore production of 
ferronickel (OAR 340-236-0200 through 0230) because sources of this 
type no longer exist in the state. Any new facilities would be subject 
to new source review as well as applicable NSPS and NESHAP 
requirements. Oregon also made clear the appropriate test method to 
determine compliance with the hot mix asphalt plant rules at OAR 340-
236-0410(1). In addition, the state added a requirement that hot mix 
asphalt plants must develop a fugitive emissions control plan if 
requested by the ODEQ. See OAR 340-236-0410(4).
    We note that Oregon repealed OAR 340-236-0430 specific to portable 
hot mix asphalt plants, which addressed only permit requirements for 
such plants, because these plants are now regulated under general 
permits in Division 216. With the exception of the provisions 
regulating animal matter and municipal solid waste landfills, we 
propose to approve the revisions and repeals because they are 
consistent with CAA requirements. The provisions regulating animal 
matter and municipal solid waste landfills are not related to the 
criteria pollutants regulated under title I of the CAA, not essential 
for meeting and maintaining the NAAQS, nor related to the requirements 
for SIPs under section 110 of the CAA.

S. Division 240: Rules for Areas With Unique Air Quality Needs

    In the submission, Oregon revised air quality control requirements 
for certain areas--these are generally areas that are, or have been, 
designated nonattainment by the EPA. At OAR 340-240-0050, the state 
clarified the appropriate test methods for determining compliance with 
emission standards in this division, improving the enforceability of 
the standards. In addition, visible emissions requirements, at OAR 340-
240-0110, 0140, 0330, 0350, and 0510, were revised to update opacity 
testing averaging times from an aggregate three-minute exception in any 
one hour to a six-minute average. The state explained the basis for 
this change in its submission, and we describe, in Section E above, why 
we propose to approve this change.
    Oregon also revised particulate control requirements for air 
conveying systems, at OAR 340-240-0350, setting removal efficiency 
standards designed to ensure that the pollution collected from a source 
is not ultimately discharged into the atmosphere. In making this 
change, the state regulated design removal efficiency rather than 
actual removal efficiency because of the challenges of testing for 
removal efficiency, which requires measuring emissions at the inlet and 
the outlet. Oregon updated the grain loading standard for air conveying 
systems in the La Grande Urban Growth Area emitting ten tons or less a 
year (from 0.1 to 0.10 grains per standard cubic foot) but allowed 
extensions of up to one year, if necessary to install controls to meet 
the revised standard. Oregon made the changes intending to better align 
the rules with federally-approved standards and testing methods.
    Also in this division, Oregon repealed the charcoal producing plant 
rules at OAR 340-240-0170 because there are no longer any existing 
sources of this type in Oregon outside of Lane County (which is subject 
to rules in addition to, or in lieu of, these rules), and any new 
charcoal producing plants would be subject to new source review and any 
applicable NSPS and NESHAP requirements. In accord with changes to 
other divisions discussed above, the state removed the sanctioned use 
of asphalt and oil as dust suppressants. Oregon also repealed old, 
expired provisions in this division.
    We note that Oregon's federally-approved SIP currently controls 
sources

[[Page 14668]]

in the Klamath Falls nonattainment area, and incentivizes sources in 
Klamath Falls to offset particulate emissions by decommissioning 
fireplaces, installing fireplace inserts, replacing old stoves with 
certified stoves, and replacing wood-fired heaters with alternatives 
like natural gas and electric baseboards. In this submission, Oregon 
updated requirements in Klamath Falls by removing an exception from the 
20% opacity standard, and by uniformly applying the 6-minute averaging 
time to measure opacity, as described above in Section E.
    Oregon also revised this section to expand offsets to the Lakeview 
sustainment area as well as other eligible areas. See OAR 340-240-0560. 
We propose to approve the revisions because they are consistent with 
the CAA and strengthen the SIP.

T. Division 242: Rules Applicable to the Portland Area

    This division contains additional requirements that apply in the 
Portland area. The industrial emissions management program was updated 
to account for the changes to Oregon's Major NSR and State NSR 
programs. Oregon also moved the net air quality benefit provisions to 
Division 224 to consolidate NSR requirements. We note that we already 
approved the changes to the Gasoline Vapors from Gasoline Transfer and 
Dispensing Operations section at OAR 340-242-0500, 0510, and 0520 on 
October 27, 2015 (80 FR 65655), and are therefore not addressing them 
in this action.
    Oregon repealed the Spray Paint rule sections at OAR 340-242-0700 
through 0790 because the EPA has set national rules designed to be more 
stringent. The Oregon spray paint rules were originally a mass-based 
standard adopted in 1995 and projected to have a 15 percent reduction 
in VOCs in the 1996 Portland Ozone Maintenance Plan. On March 24, 2008, 
the EPA finalized national VOC rules (73 FR 15604). As described in the 
proposal for the EPA's rule, the EPA's reactivity-based standard would 
provide a 19 percent reduction in VOCs (July 16, 2007, 72 FR 38952). 
The EPA also cited the rule's projected 19 percent reduction of VOC in 
an EPA memo providing guidelines on emissions reduction credit.\20\ In 
addition, California Air Resource Board developed a reactivity-based 
standard, approved by the EPA in September 2005 (70 FR 53930). We find 
the repeal to be approvable and propose to approve the submitted 
changes to Division 242 as consistent with CAA requirements.
---------------------------------------------------------------------------

    \20\ Stephen Page, ``Emission Reduction Credit for Three Federal 
Rules for Categories of Consumer and Commercial Products,'' Memo to 
Regional Administrators, 2007.
---------------------------------------------------------------------------

U. Division 262: Heat Smart Program for Residential Woodstoves and 
Other Solid Fuel Heating Devices

    Oregon submitted a change to the definitions section of this 
division, at OAR 340-262-0450. Oregon's rules now expressly exclude 
boilers providing process heat to a commercial, industrial, or 
institutional establishment (that obtain a construction approval from 
the ODEQ) from the definition of ``solid fuel burning device'' 
regulated under the Heat Smart Program. These units are currently 
exempt from the Heat Smart Program under Oregon's SIP and the revision 
to Oregon's rules continues that exemption. We propose to approve the 
change because as a matter of federal law, this revision results in no 
change to the Oregon SIP.

V. Division 264: Rules for Open Burning

    The only substantive change to this division is the repeal of the 
forced air pit incinerators rule and associated references at OAR 340-
264-0190. Forced air pit and air curtain incinerators are regulated 
under the EPA's rules for Commercial/Industrial Solid Waste 
Incinerators and are required to have title V operating permits. The 
ODEQ has therefore determined that such units should no longer be 
regulated under Oregon's rules for open burning. We propose to approve 
the repeal as consistent with the CAA.

W. Division 268: Emission Reduction Credits

    In Division 268, Oregon submitted revisions to OAR 340-268-0030 to 
clarify when reductions in criteria pollutant emissions that are also 
hazardous air pollutant emissions are creditable. Emissions reductions 
required to meet federal NESHAP standards in 40 CFR part 61 or 63 are 
not creditable as emission reduction credits for purposes of Major NSR 
in nonattainment or reattainment areas in Oregon. However, criteria 
pollutant reductions that are in excess of, or incidental to, the 
required hazardous air pollutant reductions can potentially earn 
credits--as long as all conditions are met. Oregon also lowered the 
threshold for banking credits in the Klamath Falls and Lakeview areas 
from ten tons to one ton--to encourage trading activity. Finally, 
Oregon specified when such credits are considered used up, and when 
they expire. The revisions are consistent with the CAA and the EPA's 
implementing regulations and we propose to approve them.

X. Source Sampling Manual and Continuous Monitoring Manual

    Oregon submitted the ODEQ Source Sampling Manual, Volumes I and II, 
and the ODEQ Continuous Monitoring Manual, revised as of April 2015. 
These manuals are key reference materials used in OAR Divisions 200 
through 268. As noted above, Oregon added references to the April 2015 
edition of both manuals in Division 200. Oregon incorporates changes to 
testing and monitoring requirements--spelled out in these manuals--into 
the permits of source owners and operators, as necessary.
    The Source Sampling Manual addresses air emissions source sampling 
practices and procedures for projects in Oregon. Volume I of this 
manual was updated to account for changes to the EPA methods for 
measuring fine particulate matter, and other new and modernized 
methods. Volume II of this manual was revised to remove the annual 
reporting requirements for small gasoline dispensing facilities 
(throughput of less than 10,000 gallons of gasoline per month). The 
state determined that the annual reporting requirement was not needed 
to measure compliance because the ODEQ collected one-time throughput 
data from these facilities and is authorized to request additional 
information if needed.
    Oregon extensively revised the Continuous Monitoring Manual, 
originally published in 1992. The manual includes federal monitoring 
requirements for the NSPS, NESHAP, and Acid Rain programs and was 
updated primarily to address continuous monitoring systems of all 
types. The changes affect commercial operations that are required to 
install and operate continuous monitoring systems, contractors that 
audit or certify the systems, and vendors that sell or design the 
systems. We reviewed the revised manuals, and we propose to approve the 
changes as consistent with 40 CFR part 51, subpart M, and part 60, 
subparts A and B, for purposes of the emission limits and requirements 
approved into the SIP.

IV. Proposed Action

    We propose to approve, and incorporate by reference, specific rule 
revisions submitted by Oregon on May 21, 2015. As documented in the 
submission, we propose to approve certain of the state rule revisions 
to also apply in Lane County, because the Oregon EQC has determined 
those rule to be more stringent that the

[[Page 14669]]

corresponding local rules. We also propose to approve, but not 
incorporate by reference, specific provisions that provide the ODEQ 
with authority needed for SIP approval.
    In addition, we propose to remove repealed rules from Oregon's 
federally-approved SIP, as requested by the state, because they are 
obsolete or redundant. Finally, we are not approving certain rules that 
are inconsistent with CAA requirements, or that are inappropriate for 
SIP approval, because they are not related to the criteria pollutants 
regulated under title I of the CAA, not essential for meeting and 
maintaining the NAAQS, or not related to the requirements for SIPs 
under section 110 of the CAA.

A. Rules Approved and Incorporated by Reference

    We propose to approve into the Oregon SIP, and incorporate by 
reference at 40 CFR part 52, subpart MM, the submitted revisions to 
Chapter 340 of the OAR listed below, state effective April 16, 2015:
     Division 200--General Air Pollution Procedures and 
Definitions (0010, 0020, 0025, 0030, 0035);
     Division 202--Ambient Air Quality Standards and PSD 
Increments (0010, 0020, 0050, 0070, 0100, 0130, 0200, 0210, 0220, 
0225);
     Division 204--Designation of Air Quality Areas (0010, 
0020, 0030, 0040, 0050, 0060, 0070, 0080, 0090, 0300, 0310, 0320);
     Division 206--Air Pollution Emergencies (0010, 0020, 0030, 
0040, 0050, 0060, 0070, 8010, 8020, 8030, 8040);
     Division 208--Visible Emissions and Nuisance Requirements 
(0005, 0010, 0110, 0210);
     Division 209--Public Participation (0010, 0020, 0030, 
0040, 0050, 0060, 0070, 0080);
     Division 210--Stationary Source Notification Requirements 
(0010, 0020, 0100, 0110, 0120, 0205, 0215, 0225, 0230, 0240, 0250);
     Division 212--Stationary Source Testing and Monitoring 
(0005, 0010, 0110, 0120, 0130, 0140, 0150);
     Division 214--Stationary Source Reporting Requirements 
(0005, 0010, 0100, 0110, 0114, 0130, 0200, 0210, 0220, 0300--except 
introductory sentence related to NSPS and NESHAPs, 0310, 0320, 0330, 
0340, 0350);
     Division 216--Air Contaminant Discharge Permits (0010, 
0020, 0025, 0030, 0040, 0052, 0054, 0060, 0062, 0064, 0066, 0068, 0070, 
0082, 0084, 0090, 0094, 8010, 8020);
     Division 222--Stationary Source Plant Site Emission Limits 
(0010, 0020, 0030, 0035, 0040, 0041, 0042, 0046, 0048, 0051, 0055, 
0080, 0090);
     Division 224--New Source Review (0010, 0020, 0025, 0030, 
0034, 0038, 0040, 0045, 0050, 0055, 0060, 0070, 0245, 0250, 0255, 0260, 
0270, 0500, 0510--except paragraph (3), 0520, 0530, 0540);
     Division 225--Air Quality Analysis Requirements (0010, 
0020, 0030, 0040, 0045, 0050, 0060, 0070);
     Division 226--General Emissions Standards (0005, 0010, 
0100, 0110, 0120, 0130, 0140, 0210, 0310, 0320, 0400, 8010);
     Division 228--Requirements for Fuel Burning Equipment and 
Fuel Sulfur Content (0010, 0020, 0100, 0110, 0120, 0130, 0200, 0210);
     Division 232--Emission Standards for VOC Point Sources 
(0010, 0020, 0030, 0040, 0050, 0060, 0080, 0085, 0090, 0100, 0110, 
0120, 0130, 0140, 0150, 0160, 0170, 0180, 0190, 0200, 0210, 0220, 
0230);
     Division 234--Emission Standards for Wood Products 
Industries (0005, 0010--except (8) and (10), 0100, 0140, 0200, 0210--
except (1), 0220--except (2), 0240--except (1), 0250--except (1) and 
(2), 0270, 0500, 0510, 0520, 0530, 0540);
     Division 236--Emission Standards for Specific Industries 
(0005, 0010, 0400, 0410, 0420, 0440, 8010);
     Division 240--Rules for Areas with Unique Air Quality 
Needs (0010, 0020, 0030, 0050, 0100, 0110, 0120, 0130, 0140, 0150, 
0160, 0180, 0190, 0210, 0220, 0250, 0300, 0320, 0330, 0340, 0350, 0360, 
0400, 0410, 0420, 0430, 0440, 0510, 0550, 0560, 0610);
     Division 242--Rules Applicable to the Portland Area (0400, 
0410, 0420, 0430, 0440, 0600, 0610, 0620, 0630);
     Division 262--Heat Smart Program for Residential 
Woodstoves and Other Solid Fuel Heating Devices (0450);
     Division 264--Rules for Open Burning (0010, 0020, 0030, 
0040, 0050, 0060, 0070, 0075, 0078, 0080, 0100, 0110, 0120, 0130, 0140, 
0150, 0160, 0170, 0175, 0180); and
     Division 268--Emission Reduction Credits (0010, 0020, 
0030).
Rules Also Approved for Lane County
     Division 200--General Air Pollution Procedures and 
Definitions (0020);
     Division 202--Ambient Air Quality Standards and PSD 
Increments (0050);
     Division 204--Designation of Air Quality Areas (0300, 
0310, 0320);
     Division 208--Visible Emissions and Nuisance Requirements 
(0110, 0210);
     Division 214--Stationary Source Reporting Requirements 
(0114) (5);
     Division 216--Air Contaminant Discharge Permits (0040, 
8010);
     Division 222--Stationary Source Plant Site Emission Limits 
(0090);
     Division 224 -New Source Review (0030, 0530);
     Division 225--Air Quality Analysis Requirements (0010, 
0020, 0030, 0040, 0045, 0050, 0060, 0070);
     Division 226--General Emissions Standards (0210); and
     Division 228--Requirements for Fuel Burning Equipment and 
Fuel Sulfur Content (0210).

B. Rules Approved but Not Incorporated by Reference

    We propose to approve, but not incorporate by reference, the 
following provisions:
     ODEQ Source Sampling Manual, Volumes I and II, April 2015 
(for purposes of the limits approved into the SIP);
     ODEQ Continuous Emissions Monitoring Manual, April 2015 
(for purposes of the limits approved into the SIP);
     ODEQ-LRAPA Stringency Analysis and Directive, Attachment 
B; and
     Division 200--General Air Pollution Procedures and 
Definitions (0100, 0110, 0120).

C. Rules Removed

    We propose to remove the following sections from the Oregon SIP 
because they have been repealed, replaced by rules noted in paragraph A 
above, or the state has asked that they be removed:
     Division 208--Visible Emissions and Fugitive Emissions 
Requirements (0100, 0200);
     Division 212--Compliance Assurance Monitoring (0200, 0210, 
0220, 0230, 0240, 0250, 0260, 0270, 0280);
     Division 214--Stationary Source Reporting Requirements 
(0360);
     Division 222--Stationary Source Plant Site Emissions 
Limits (0043, 0045, 0070);
     Division 224--New Source Review (0080, 0100);
     Division 225--Air Quality Analysis Requirements (0090);
     Division 226--General Emission Standards (0200);
     Division 228--Requirements for Fuel Burning Equipment and 
Fuel Sulfur Content (0400, 0410, 0420, 0430, 0440, 0450, 0460, 0470, 
0480, 0490, 0500, 0510, 0520, 0530);
     Division 234--Emission Standards for Wood Products 
Industries (0300, 0310, 0320, 0330, 0340, 0350, 0360, 0400, 0410, 0420, 
0430);
     Division 236--Emission Standards for Specific Industries 
(0100, 0110,

[[Page 14670]]

0120, 0130, 0140, 0150, 0200, 0210, 0220, 0230, 0430);
     Division 240--Rules for Areas with Unique Air Quality 
Needs (0170, 0230, 0310);
     Division 242--Rules Applicable to the Portland Areas 
(0700, 0710, 0720, 0730, 0740, 0750, 0760, 0770, 0780, 0790); and
     Division 264--Rules for Open Burning (0190).

D. Rules Not Approved

    For the reasons stated above, we are not approving the following 
revised provisions submitted by Oregon because they are inconsistent 
with CAA requirements, or because they are inappropriate for SIP 
approval under section 110, title I of the CAA:
     Division 200--General Air Pollution Procedures and 
Definitions (0050) (compliance schedules);
     Division 214--Stationary Source Reporting Requirements 
(0300 introductory sentence related to NSPS and NESHAPs);
     Division 222--Stationary Source Plant Site Emission Limits 
(0060) (hazardous air pollutants);
     Division 224--New Source Review (0510(3)) 
(PM2.5 inter-pollutant offset ratios); and
     Division 234--Emission Standards for Wood Products 
Industries (0010(8) and (10), 0210(1), 0220(2), 0240(1), 0250 (1) and 
(2)) (total reduced sulfur and odor).

V. Incorporation by Reference

    In this rule, we are proposing to include in a final rule 
regulatory text that includes incorporation by reference. In accordance 
with requirements of 1 CFR 51.5, we are proposing to incorporate by 
reference the provisions described above in Section IV. Proposed 
Action. The EPA has made, and will continue to make, these documents 
generally available electronically through http://www.regulations.gov 
and/or in hard copy at the appropriate EPA office (see the ADDRESSES 
section of this preamble for more information).

VI. Oregon Notice Provision

    Oregon Revised Statute 468.126 prohibits the ODEQ from imposing a 
penalty for violation of an air, water or solid waste permit unless the 
source has been provided five days' advanced written notice of the 
violation and has not come into compliance or submitted a compliance 
schedule within that five-day period. By its terms, the statute does 
not apply to Oregon's title V program or to any program if application 
of the notice provision would disqualify the program from federal 
delegation. Oregon has previously confirmed that, because application 
of the notice provision would preclude EPA approval of the Oregon SIP, 
no advance notice is required for violation of SIP requirements.

VII. Statutory and Executive Order Reviews

    Under the CAA, the Administrator is required to approve a SIP 
submission that complies with the provisions of the CAA and applicable 
federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in 
reviewing SIP submissions, the EPA's role is to approve state choices, 
provided that they meet the criteria of the CAA. Accordingly, this 
proposed action merely approves state law as meeting federal 
requirements and does not impose additional requirements beyond those 
imposed by state law. For that reason, this proposed action:
     Is not a ``significant regulatory action'' subject to 
review by the Office of Management and Budget under Executive Orders 
12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 
2011);
     does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     does not have federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because this action does not involve technical standards; and
     does not provide the EPA with the discretionary authority 
to address, as appropriate, disproportionate human health or 
environmental effects, using practicable and legally permissible 
methods, under Executive Order 12898 (59 FR 7629, February 16, 1994).
    The SIP is not approved to apply on any Indian reservation land or 
in any other area where the EPA or an Indian tribe has demonstrated 
that a tribe has jurisdiction. In those areas of Indian country, the 
rule does not have tribal implications as specified by Executive Order 
13175 (65 FR 67249, November 9, 2000), nor will it impose substantial 
direct costs on tribal governments or preempt tribal law.

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Lead, Nitrogen dioxide, Ozone, 
Particulate matter, Reporting and recordkeeping requirements, Sulfur 
oxides, Volatile organic compounds.

    Authority:  42 U.S.C. 7401 et seq.

    Dated: March 9, 2017.
Michelle L. Pirzadeh,
Acting Regional Administrator, EPA Region 10.
[FR Doc. 2017-05463 Filed 3-21-17; 8:45 am]
 BILLING CODE 6560-50-P


