
[Federal Register Volume 79, Number 226 (Monday, November 24, 2014)]
[Proposed Rules]
[Pages 69796-69802]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-27752]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R09-OAR-2014-0258; FRL-9919-50-Region 9]


Approval and Promulgation of State Implementation Plans; Arizona; 
Infrastructure Requirements for the 2008 Lead (Pb) and the 2008 8-Hour 
Ozone National Ambient Air Quality Standards (NAAQS)

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve a State Implementation Plan (SIP) revision submitted by the 
State of Arizona to address the requirements of section 110(a)(1) and 
(2) of the Clean Air Act (CAA) for the 2008 Lead (Pb) and 2008 ozone 
national ambient air quality standards (NAAQS). Section 110(a) of the 
CAA requires that each State adopt and submit a SIP for the 
implementation, maintenance, and enforcement of each NAAQS promulgated 
by EPA. We refer to such SIP revisions as ``infrastructure'' SIPs 
because they are intended to address basic structural SIP requirements 
for new or revised NAAQS including, but not limited to, legal 
authority, regulatory structure, resources, permit programs, 
monitoring, and modeling necessary to assure attainment and maintenance 
of the standards. In addition, we are proposing to approve several 
state provisions addressing CAA conflict of interest and monitoring 
requirements into the Arizona SIP. We are taking comments on this 
proposal and plan to follow with a final action.

DATES: Written comments must be received on or before December 24, 
2014.

ADDRESSES: Submit your comments, identified by Docket No. EPA-R09-OAR-
2014-0258, by one of the following methods:
    1. Federal Rulemaking Portal: http://www.regulations.gov. Follow 
the on-line instructions for submitting comments.
    2. Email: Jeffrey Buss at buss.jeffrey@epa.gov.
    3. Fax: Jeffrey Buss, Air Planning Office (AIR-2), at fax number 
415-947-3579.
    4. Mail: Jeffrey Buss, Air Planning Office (AIR-2), U.S. 
Environmental Protection Agency, Region IX, 75 Hawthorne, San 
Francisco, California 94105.
    5. Hand or Courier Delivery: Jeffrey Buss, Air Planning Section 
(AIR-2), U.S. Environmental Protection Agency, Region IX, 75 Hawthorne, 
San Francisco, California 94105. Such deliveries are only accepted 
during the Regional Office's normal hours of operation. Special 
arrangements should be made for deliveries of boxed information.
    Instructions: Direct your comments to Docket ID No. EPA-R09-OAR-
2014-0258. EPA's policy is that all comments received will be included 
in the public docket without change and may be made available online at 
www.regulations.gov, including any personal information provided, 
unless the comment includes information claimed to be Confidential 
Business Information (CBI) or other information the disclosure of which 
is restricted by statute. Do not submit information through 
www.regulations.gov or email that you consider to be CBI or otherwise 
protected from disclosure. The www.regulations.gov Web site is an 
anonymous access system, which means EPA will not know your identity or 
contact information unless you provide it in the body of your comment. 
If you send an email comment directly to EPA without going through 
www.regulations.gov, your email address will be automatically captured 
and included as part of the comment that is placed in the public docket 
and made available on the Internet. If you submit an electronic 
comment, EPA recommends that you include your name and other contact 
information in the body of your comment and with any disk or CD-ROM you 
submit. If EPA cannot read your comment due to technical difficulties 
and cannot contact you for clarification, EPA may not be able to 
consider your comment. Electronic files should avoid the use of special 
characters, any form of encryption, and be free of any defects or 
viruses.
    Docket: All documents in the docket are listed in the 
www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, will be publicly

[[Page 69797]]

available only in hard copy. Publicly available docket materials are 
available either electronically in www.regulations.gov or in hard copy 
at the Air Planning Office (AIR-2), U.S. Environmental Protection 
Agency, Region IX, 75 Hawthorne Street, San Francisco, California 
94105. EPA requests that if at all possible, you contact the person 
listed in the FOR FURTHER INFORMATION CONTACT section to schedule your 
inspection during normal business hours.

FOR FURTHER INFORMATION CONTACT: Jeffrey Buss, Office of Air Planning, 
U.S. Environmental Protection Agency, Region 9, (415) 947-4152, email: 
buss.jeffrey@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document, the terms ``we,'' 
``us,'' and ``our'' refer to EPA.

Table of Contents

I. EPA's approach to the Review of Infrastructure SIP Submittals
II. Background
III. Arizona's Submittals
IV. EPA's Evaluation and Proposed Action
V. Statutory and Executive Order Reviews

I. EPA's Approach to the Review of Infrastructure SIP Submittals

    EPA is acting upon several SIP submittals from Arizona that address 
the infrastructure requirements of CAA sections 110(a)(1) and 110(a)(2) 
for the 2008 ozone and 2008 Pb NAAQS. The requirement for states to 
make a SIP submittal of this type arises out of CAA section 110(a)(1). 
Pursuant to section 110(a)(1), states must make SIP submittals ``within 
3 years (or such shorter period as the Administrator may prescribe) 
after the promulgation of a national primary ambient air quality 
standard (or any revision thereof),'' and these SIP submittals are to 
provide for the ``implementation, maintenance, and enforcement'' of 
such NAAQS. The statute directly imposes on states the duty to make 
these SIP submittals, and the requirement to make the submittals is not 
conditioned upon EPA's taking any action other than promulgating a new 
or revised NAAQS. Section 110(a)(2) includes a list of specific 
elements that ``[e]ach such plan'' submittal must address.
    EPA has historically referred to these SIP submittals made for the 
purpose of satisfying the requirements of CAA sections 110(a)(1) and 
110(a)(2) as ``infrastructure SIP'' submittals. Although the term 
``infrastructure SIP'' does not appear in the CAA, EPA uses the term to 
distinguish this particular type of SIP submittal from submittals that 
are intended to satisfy other SIP requirements under the CAA, such as 
``nonattainment SIP'' or ``attainment SIP'' submittals to address the 
nonattainment planning requirements of part D of title I of the CAA, 
``regional haze SIP'' submittals required by EPA rule to address the 
visibility protection requirements of CAA section 169A, and 
nonattainment new source review (NSR) permit program submittals to 
address the permit requirements of CAA, title I, part D.
    Section 110(a)(1) addresses the timing and general requirements for 
infrastructure SIP submittals, and section 110(a)(2) provides more 
details concerning the required contents of these submittals. The list 
of required elements provided in section 110(a)(2) contains a wide 
variety of disparate provisions, some of which pertain to required 
legal authority, some of which pertain to required substantive program 
provisions, and some of which pertain to requirements for both 
authority and substantive program provisions.\1\ EPA therefore believes 
that while the timing requirement in section 110(a)(1) is unambiguous, 
some of the other statutory provisions are ambiguous. In particular, 
EPA believes that the list of required elements for infrastructure SIP 
submittals provided in section 110(a)(2) contains ambiguities 
concerning what is required for inclusion in an infrastructure SIP 
submittal.
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    \1\ For example: Section 110(a)(2)(E)(i) provides that states 
must provide assurances that they have adequate legal authority 
under state and local law to carry out the SIP; section 110(a)(2)(C) 
provides that states must have a SIP-approved program to address 
certain sources as required by part C of title I of the CAA; and 
section 110(a)(2)(G) provides that states must have legal authority 
to address emergencies as well as contingency plans that are 
triggered in the event of such emergencies.
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    The following examples of ambiguities illustrate the need for EPA 
to interpret some section 110(a)(1) and section 110(a)(2) requirements 
with respect to infrastructure SIP submittals for a given new or 
revised NAAQS. One example of ambiguity is that section 110(a)(2) 
requires that ``each'' SIP submittal must meet the list of requirements 
therein, while EPA has long noted that this literal reading of the 
statute is internally inconsistent and would create a conflict with the 
nonattainment provisions in part D of title I of the Act, which 
specifically address nonattainment SIP requirements.\2\ Section 
110(a)(2)(I) pertains to nonattainment SIP requirements and part D 
addresses when attainment plan SIP submittals to address nonattainment 
area requirements are due. For example, section 172(b) requires EPA to 
establish a schedule for submittal of such plans for certain pollutants 
when the Administrator promulgates the designation of an area as 
nonattainment, and section 107(d)(1)(B) allows up to two years, or in 
some cases three years, for such designations to be promulgated.\3\ 
This ambiguity illustrates that rather than apply all the stated 
requirements of section 110(a)(2) in a strict literal sense, EPA must 
determine which provisions of section 110(a)(2) are applicable for a 
particular infrastructure SIP submittal.
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    \2\ See, e.g., ``Rule To Reduce Interstate Transport of Fine 
Particulate Matter and Ozone (Clean Air Interstate Rule); Revisions 
to Acid Rain Program; Revisions to the NOX SIP Call; 
Final Rule,'' 70 FR 25162, at 25163-25165, May 12, 2005 (explaining 
relationship between timing requirement of section 110(a)(2)(D) 
versus section 110(a)(2)(I)).
    \3\ EPA notes that this ambiguity within section 110(a)(2) is 
heightened by the fact that various subparts of part D set specific 
dates for submittal of certain types of SIP submittals in designated 
nonattainment areas for various pollutants. Note, e.g., that section 
182(a)(1) provides specific dates for submittal of emissions 
inventories for the ozone NAAQS. Some of these specific dates are 
necessarily later than three years after promulgation of the new or 
revised NAAQS.
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    Another example of ambiguity within sections 110(a)(1) and 
110(a)(2) with respect to infrastructure SIPs pertains to whether 
states must meet all of the infrastructure SIP requirements in a single 
SIP submittal, and whether EPA must act upon such SIP submittal in a 
single action. Although section 110(a)(1) directs states to submit ``a 
plan'' to meet these requirements, EPA interprets the CAA to allow 
states to make multiple SIP submittals separately addressing 
infrastructure SIP elements for the same NAAQS. If states elect to make 
such multiple SIP submittals to meet the infrastructure SIP 
requirements, EPA can elect to act on such submittals either 
individually or in a larger combined action.\4\ Similarly, EPA 
interprets the CAA to allow it to take action on the individual parts 
of one larger, comprehensive infrastructure SIP submittal for a given 
NAAQS without concurrent action on the entire submittal. For example, 
EPA has sometimes elected to act at different times on various elements 
and sub-

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elements of the same infrastructure SIP submittal.\5\
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    \4\ See, e.g., ``Approval and Promulgation of Implementation 
Plans; New Mexico; Revisions to the New Source Review (NSR) State 
Implementation Plan (SIP); Prevention of Significant Deterioration 
(PSD) and Nonattainment New Source Review (NNSR) Permitting,'' 78 FR 
4339, January 22, 2013 (EPA's final action approving the structural 
PSD elements of the New Mexico SIP submitted by the State separately 
to meet the requirements of EPA's 2008 PM2.5 NSR rule), 
and ``Approval and Promulgation of Air Quality Implementation Plans; 
New Mexico; Infrastructure and Interstate Transport Requirements for 
the 2006 PM2.5 NAAQS,'' 78 FR 4337, January 22, 2013 
(EPA's final action on the infrastructure SIP for the 2006 
PM2.5 NAAQS).
    \5\ On December 14, 2007, the State of Tennessee, through the 
Tennessee Department of Environment and Conservation, made a SIP 
revision to EPA demonstrating that the State meets the requirements 
of sections 110(a)(1) and (2). EPA proposed action for 
infrastructure SIP elements (C) and (J) on January 23, 2012 (77 FR 
3213) and took final action on March 14, 2012 (77 FR 14976). On 
April 16, 2012 (77 FR 22533) and July 23, 2012 (77 FR 42997), EPA 
took separate proposed and final actions on all other section 
110(a)(2) infrastructure SIP elements of Tennessee's December 14, 
2007 submittal.
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    Ambiguities within sections 110(a)(1) and 110(a)(2) may also arise 
with respect to infrastructure SIP submittal requirements for different 
NAAQS. Thus, EPA notes that not every element of section 110(a)(2) 
would be relevant, or as relevant, or relevant in the same way, for 
each new or revised NAAQS. The states' attendant infrastructure SIP 
submittals for each NAAQS therefore could be different. For example, 
the monitoring requirements that a state might need to meet in its 
infrastructure SIP submittal for purposes of section 110(a)(2)(B) could 
be very different for different pollutants, for example because the 
content and scope of a state's infrastructure SIP submittal to meet 
this element might be very different for an entirely new NAAQS than for 
a minor revision to an existing NAAQS.\6\
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    \6\ For example, implementation of the 1997 PM2.5 
NAAQS required the deployment of a system of new monitors to measure 
ambient levels of that new indicator species for the new NAAQS.
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    EPA notes that interpretation of section 110(a)(2) is also 
necessary when EPA reviews other types of SIP submittals required under 
the CAA. Therefore, as with infrastructure SIP submittals, EPA also has 
to identify and interpret the relevant elements of section 110(a)(2) 
that logically apply to these other types of SIP submittals. For 
example, section 172(c)(7) requires that attainment plan SIP submittals 
required by part D have to meet the ``applicable requirements'' of 
section 110(a)(2). Thus, for example, attainment plan SIP submittals 
must meet the requirements of section 110(a)(2)(A) regarding 
enforceable emission limits and control measures and section 
110(a)(2)(E)(i) regarding air agency resources and authority. By 
contrast, it is clear that attainment plan SIP submittals required by 
part D would not need to meet the portion of section 110(a)(2)(C) that 
pertains to the air quality prevention of significant deterioration 
(PSD) program required in part C of title I of the CAA, because PSD 
does not apply to a pollutant for which an area is designated 
nonattainment and thus subject to part D planning requirements. As this 
example illustrates, each type of SIP submittal may implicate some 
elements of section 110(a)(2) but not others.
    Given the potential for ambiguity in some of the statutory language 
of section 110(a)(1) and section 110(a)(2), EPA believes that it is 
appropriate to interpret the ambiguous portions of section 110(a)(1) 
and section 110(a)(2) in the context of acting on a particular SIP 
submittal. In other words, EPA assumes that Congress could not have 
intended that each and every SIP submittal, regardless of the NAAQS in 
question or the history of SIP development for the relevant pollutant, 
would meet each of the requirements, or meet each of them in the same 
way. Therefore, EPA has adopted an approach under which it reviews 
infrastructure SIP submittals against the list of elements in section 
110(a)(2), but only to the extent each element applies for that 
particular NAAQS.
    Historically, EPA has elected to use guidance documents to make 
recommendations to states for infrastructure SIPs, in some cases 
conveying needed interpretations on newly arising issues and in some 
cases conveying interpretations that have already been developed and 
applied to individual SIP submittals for particular elements.\7\ EPA 
most recently issued guidance for infrastructure SIPs on September 13, 
2013 (2013 Infrastructure SIP Guidance).\8\ EPA developed this document 
to provide states with up-to-date guidance for infrastructure SIPs for 
any new or revised NAAQS. Within this guidance, EPA describes the duty 
of states to make infrastructure SIP submittals to meet basic 
structural SIP requirements within three years of promulgation of a new 
or revised NAAQS. EPA also made recommendations about many specific 
subsections of section 110(a)(2) that are relevant in the context of 
infrastructure SIP submittals.\9\ The guidance also discusses the 
substantively important issues that are germane to certain subsections 
of section 110(a)(2). Significantly, EPA interprets sections 110(a)(1) 
and 110(a)(2) such that infrastructure SIP submittals need to address 
certain issues and need not address others. Accordingly, EPA reviews 
each infrastructure SIP submittal for compliance with the applicable 
statutory provisions of section 110(a)(2), as appropriate.
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    \7\ EPA notes, however, that nothing in the CAA requires EPA to 
provide guidance or to promulgate regulations for infrastructure SIP 
submittals. The CAA directly applies to states and requires the 
submittal of infrastructure SIP submittals, regardless of whether or 
not EPA provides guidance or regulations pertaining to such 
submittals. EPA elects to issue such guidance in order to assist 
states, as appropriate.
    \8\ ``Guidance on Infrastructure State Implementation Plan (SIP) 
Elements under Clean Air Act Sections 110(a)(1) and 110(a)(2),'' 
Memorandum from Stephen D. Page, September 13, 2013.
    \9\ EPA's September 13, 2013, guidance did not make 
recommendations with respect to infrastructure SIP submittals to 
address section 110(a)(2)(D)(i)(I). EPA issued the guidance shortly 
after the U.S. Supreme Court agreed to review the D.C. Circuit 
decision in EME Homer City, 696 F.3d7 (D.C. Cir. 2012) which had 
interpreted the requirements of section 110(a)(2)(D)(i)(I). In light 
of the uncertainty created by ongoing litigation, EPA elected not to 
provide additional guidance on the requirements of section 
110(a)(2)(D)(i)(I) at that time. As the guidance is neither binding 
nor required by statute, whether EPA elects to provide guidance on a 
particular section has no impact on a state's CAA obligations.
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    As an example, section 110(a)(2)(E)(ii) is a required element of 
section 110(a)(2) for infrastructure SIP submittals. Under this 
element, a state must meet the substantive requirements of section 128, 
which pertain to state boards that approve permits or enforcement 
orders and heads of executive agencies with similar powers. Thus, EPA 
reviews infrastructure SIP submittals to ensure that the state's SIP 
appropriately addresses the requirements of section 110(a)(2)(E)(ii) 
and section 128. The 2013 Infrastructure SIP Guidance explains EPA's 
interpretation that there may be a variety of ways by which states can 
appropriately address these substantive statutory requirements, 
depending on the structure of an individual state's permitting or 
enforcement program (e.g., whether permits and enforcement orders are 
approved by a multi-member board or by a head of an executive agency). 
However they are addressed by the state, the substantive requirements 
of section 128 are necessarily included in EPA's evaluation of 
infrastructure SIP submittals because section 110(a)(2)(E)(ii) 
explicitly requires that the state satisfy the provisions of section 
128.
    As another example, EPA's review of infrastructure SIP submittals 
with respect to the PSD program requirements in sections 110(a)(2)(C), 
(D)(i)(II), and (J) focuses upon the structural PSD program 
requirements contained in part C, title I of the Act and EPA's PSD 
regulations. Structural PSD program requirements include provisions 
necessary for the PSD program to address all regulated sources and 
regulated NSR pollutants, including greenhouse gases (GHGs). By 
contrast, structural PSD program requirements do not include provisions 
that are not required under EPA's regulations at 40

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Code of Federal Regulations (CFR) 51.166 but are merely available as an 
option for the state, such as the option to provide grandfathering of 
complete permit applications with respect to the 2012 PM2.5 
NAAQS. Accordingly, the latter optional provisions are types of 
provisions EPA considers irrelevant in the context of an infrastructure 
SIP action.
    For other section 110(a)(2) elements, however, EPA's review of a 
state's infrastructure SIP submittal focuses on assuring that the 
state's SIP meets basic structural requirements. For example, section 
110(a)(2)(C) includes, inter alia, the requirement that states have a 
program to regulate minor new sources. Thus, EPA evaluates whether the 
state has a SIP-approved minor NSR program and whether the program 
addresses the pollutants relevant to that NAAQS. In the context of 
acting on an infrastructure SIP submittal, however, EPA does not think 
it is necessary to conduct a review of each and every provision of a 
state's existing minor source program (i.e., already in the existing 
SIP) for compliance with the requirements of the CAA and EPA's 
regulations that pertain to such programs.
    With respect to certain other issues, EPA does not believe that an 
action on a state's infrastructure SIP submittal is necessarily the 
appropriate type of action in which to address possible deficiencies in 
a state's existing SIP. These issues include: (i) Existing provisions 
related to excess emissions from sources during periods of startup, 
shutdown, or malfunction that may be contrary to the CAA and EPA's 
policies addressing such excess emissions (``SSM''); (ii) existing 
provisions related to ``director's variance'' or ``director's 
discretion'' that may be contrary to the CAA because they purport to 
allow revisions to SIP-approved emissions limits while limiting public 
process or not requiring further approval by EPA; and (iii) existing 
provisions for PSD programs that may be inconsistent with current 
requirements of EPA's ``Final NSR Improvement Rule,'' 67 FR 80186, 
December 31, 2002, as amended by 72 FR 32526, June 13, 2007 (``NSR 
Reform''). Thus, EPA believes it may approve an infrastructure SIP 
submittal without scrutinizing the totality of the existing SIP for 
such potentially deficient provisions and may approve the submittal 
even if it is aware of such existing provisions.\10\ It is important to 
note that EPA's approval of a state's infrastructure SIP submittal 
should not be construed as explicit or implicit re-approval of any 
existing potentially deficient provisions that relate to the three 
specific issues just described.
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    \10\ By contrast, EPA notes that if a state were to include a 
new provision in an infrastructure SIP submittal that contained a 
legal deficiency, such as a new exemption for excess emissions 
during SSM events, then EPA would need to evaluate that provision 
for compliance against the rubric of applicable CAA requirements in 
the context of the action on the infrastructure SIP.
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    EPA's approach to review of infrastructure SIP submittals is to 
identify the CAA requirements that are logically applicable to that 
submittal. EPA believes that this approach to the review of a 
particular infrastructure SIP submittal is appropriate, because it 
would not be reasonable to read the general requirements of section 
110(a)(1) and the list of elements in 110(a)(2) as requiring review of 
each and every provision of a state's existing SIP against all 
requirements in the CAA and EPA regulations merely for purposes of 
assuring that the state in question has the basic structural elements 
for a functioning SIP for a new or revised NAAQS. Because SIPs have 
grown by accretion over the decades as statutory and regulatory 
requirements under the CAA have evolved, they may include some outmoded 
provisions and historical artifacts. These provisions, while not fully 
up to date, nevertheless may not pose a significant problem for the 
purposes of ``implementation, maintenance, and enforcement'' of a new 
or revised NAAQS when EPA evaluates adequacy of the infrastructure SIP 
submittal. EPA believes that a better approach is for states and EPA to 
focus attention on those elements of section 110(a)(2) of the CAA most 
likely to warrant a specific SIP revision due to the promulgation of a 
new or revised NAAQS or other factors.
    For example, EPA's 2013 Infrastructure SIP Guidance gives simpler 
recommendations with respect to carbon monoxide than other NAAQS 
pollutants to meet the visibility requirements of section 
110(a)(2)(D)(i)(II), because carbon monoxide does not affect 
visibility. As a result, an infrastructure SIP submittal for any future 
new or revised NAAQS for carbon monoxide need only state this fact in 
order to address the visibility prong of section 110(a)(2)(D)(i)(II).
    Finally, EPA believes that its approach with respect to 
infrastructure SIP requirements is based on a reasonable reading of 
sections 110(a)(1) and 110(a)(2) because the CAA provides other avenues 
and mechanisms to address specific substantive deficiencies in existing 
SIPs. These other statutory tools allow EPA to take appropriately 
tailored action, depending upon the nature and severity of the alleged 
SIP deficiency. Section 110(k)(5) authorizes EPA to issue a ``SIP 
call'' whenever the Agency determines that a state's SIP is 
substantially inadequate to attain or maintain the NAAQS, to mitigate 
interstate transport, or to otherwise comply with the CAA.\11\ Section 
110(k)(6) authorizes EPA to correct errors in past actions, such as 
past approvals of SIP submittals.\12\ Significantly, EPA's 
determination that an action on a state's infrastructure SIP submittal 
is not the appropriate time and place to address all potential existing 
SIP deficiencies does not preclude EPA's subsequent reliance on 
provisions in section 110(a)(2) as part of the basis for action to 
correct those deficiencies at a later time. For example, although it 
may not be appropriate to require a state to eliminate all existing 
inappropriate director's discretion provisions in the course of acting 
on an infrastructure SIP submittal, EPA believes that section 
110(a)(2)(A) may be among the statutory bases that EPA relies upon in 
the course of addressing such deficiency in a subsequent action.\13\
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    \11\ For example, EPA issued a SIP call to Utah to address 
specific existing SIP deficiencies related to the treatment of 
excess emissions during SSM events. See ``Finding of Substantial 
Inadequacy of Implementation Plan; Call for Utah State 
Implementation Plan Revisions,'' 76 FR 21639, April 18, 2011.
    \12\ EPA has used this authority to correct errors in past 
actions on SIP submittals related to PSD programs. See ``Limitation 
of Approval of Prevention of Significant Deterioration Provisions 
Concerning Greenhouse Gas Emitting-Sources in State Implementation 
Plans; Final Rule,'' 75 FR 82536, December 30, 2010. EPA has 
previously used its authority under CAA section 110(k)(6) to remove 
numerous other SIP provisions that the Agency determined it had 
approved in error. See, e.g., 61 FR 38664, July 25, 1996 and 62 FR 
34641, June 27, 1997 (corrections to American Samoa, Arizona, 
California, Hawaii, and Nevada SIPs); 69 FR 67062, November 16, 2004 
(corrections to California SIP); and 74 FR 57051, November 3, 2009 
(corrections to Arizona and Nevada SIPs).
    \13\ See, e.g., EPA's disapproval of a SIP submittal from 
Colorado on the grounds that it would have included a director's 
discretion provision inconsistent with CAA requirements, including 
section 110(a)(2)(A). See, e.g., 75 FR 42342 at 42344, July 21, 2010 
(proposed disapproval of director's discretion provisions); 76 FR 
4540, January 26, 2011 (final disapproval of such provisions).
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II. Background

A. Statutory Framework

    As discussed in section I of this proposed rule, CAA section 
110(a)(1) requires each state to submit to EPA, within three years 
after the promulgation of a primary or secondary NAAQS or any revision 
thereof, an infrastructure SIP revision that provides

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for the implementation, maintenance, and enforcement of such NAAQS. 
Section 110(a)(2) sets the content requirements of such a plan, which 
generally relate to the information and authorities, compliance 
assurances, procedural requirements, and control measures that 
constitute the ``infrastructure'' of a state's air quality management 
program. These infrastructure SIP elements required by section 
110(a)(2) are as follows:
     Section 110(a)(2)(A): Emission limits and other control 
measures.
     Section 110(a)(2)(B): Ambient air quality monitoring/data 
system.
     Section 110(a)(2)(C): Program for enforcement of control 
measures and regulation of new and modified stationary sources.
     Section 110(a)(2)(D)(i): Interstate pollution transport.
     Section 110(a)(2)(D)(ii): Interstate and international 
pollution abatement.
     Section 110(a)(2)(E): Adequate resources and authority, 
conflict of interest, and oversight of local and regional government 
agencies.
     Section 110(a)(2)(F): Stationary source monitoring and 
reporting.
     Section 110(a)(2)(G): Emergency episodes.
     Section 110(a)(2)(H): SIP revisions.
     Section 110(a)(2)(J): Consultation with government 
officials, public notification, PSD, and visibility protection.
     Section 110(a)(2)(K): Air quality modeling and submittal 
of modeling data.
     Section 110(a)(2)(L): Permitting fees.
     Section 110(a)(2)(M): Consultation/participation by 
affected local entities.
    Two elements identified in section 110(a)(2) are not governed by 
the three-year submittal deadline of section 110(a)(1) and are 
therefore not addressed in this action. These two elements are: (i) 
Section 110(a)(2)(C) to the extent it refers to permit programs 
required under part D (nonattainment NSR), and (ii) section 
110(a)(2)(I), pertaining to the nonattainment planning requirements of 
part D. As a result, this action does not address infrastructure for 
the nonattainment NSR portion of section 110(a)(2)(C) or the whole of 
section 110(a)(2)(I).

B. Regulatory History

2008 Pb NAAQS
    On November 12, 2008, the U.S. Environmental Protection Agency 
(EPA) issued a revised NAAQS for Pb.\14\ This action triggered a 
requirement for states to submit an infrastructure SIP to address the 
applicable requirements of section 110(a)(2) within three years of 
issuance of the revised NAAQS. On October 14, 2011, EPA issued 
``Guidance on Section 110 Infrastructure SIPs for the 2008 Pb NAAQS'', 
referred to herein as EPA's 2011 Pb Guidance.\15\ Depending on the 
timing of a given submittal, some states relied on the earlier draft 
version of this guidance, referred to herein as EPA's 2011 Draft Pb 
Guidance.\16\ EPA issued additional guidance on infrastructure SIPs on 
September 13, 2013.\17\
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    \14\ 73 FR 66964 (November 12, 2008). The 1978 Pb standard (1.5 
[micro]g/m\3\ as a quarterly average) was modified to a rolling 3 
month average not to be exceeded of 0.15 [micro]g/m\3\. EPA also 
revised the secondary NAAQS to 0.15 [micro]g/m\3\ and made it 
identical to the revised primary standard. Id.
    \15\ See Memorandum from Stephen D. Page, Director, Office of 
Air Quality Planning and Standards, to Regional Air Division 
Directors, Regions 1-10 (October 14, 2011).
    \16\ ``DRAFT Guidance on SIP Elements Required Under Sections 
110(a)(1) and (2) for the 2008 Lead (Pb) National Ambient Air 
Quality Standards (NAAQS),'' June 17, 2011 version.
    \17\ See Memorandum dated September 13, 2013 from Stephen D. 
Page, Director, EPA Office of Air Quality Planning and Standards, to 
Regional Air Directors, EPA Regions 1-10, ``Guidance on 
Infrastructure State Implementation Plan (SIP) Elements under Clean 
Air Act Sections 110(a)(1) and 110(a)(2)'' (referred to herein as 
``2013 Infrastructure SIP Guidance'').
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2008 Ozone NAAQS
    On March 27, 2008, EPA issued a revised NAAQS for 8-hour Ozone.\18\ 
This action triggered a requirement for states to submit an 
infrastructure SIP to address the applicable requirements of section 
110(a)(2) within three years of issuance of the revised NAAQS. EPA did 
not, however, prepare guidance at this time for states in submitting I-
SIP revisions for the 2008 Ozone NAAQS.\19\ On September 13, 2013, EPA 
issued ``Guidance of Infrastructure State Implementation Plan (SIP) 
Elements under Clean Air Act Sections 110(a)(1) and 110(a)(2),'' which 
provides advice on the development of infrastructure SIPs for the 2008 
ozone NAAQS (among other pollutants) as well as infrastructure SIPs for 
new or revised NAAQS promulgated in the future.\20\
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    \18\ 73 FR 16436 (March 27, 2008).
    \19\ Preparation of guidance for the 2008 Ozone NAAQS was 
postponed given EPA's reconsideration of the standard. See 78 FR 
34183 (June 6, 2013).
    \20\ See Memorandum dated September 13, 2013 from Stephen D. 
Page, Director, EPA Office of Air Quality Planning and Standards, to 
Regional Air Directors, EPA Regions 1-10, ``Guidance on 
Infrastructure State Implementation Plan (SIP) Elements under Clean 
Air Act Sections 110(a)(1) and 110(a)(2)'' (referred to herein as 
``2013 Infrastructure SIP Guidance'').
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III. The State's Submittals

    The Arizona Department of Environmental Quality (ADEQ) has 
submitted several infrastructure SIP revisions pursuant to EPA's 
promulgation of the NAAQS addressed by this proposed rule, including 
the following:
     October 14, 2011--``Arizona State Implementation Plan 
Revision under Clean Air Act Section 110(a)(2) and (2); 2008 Lead 
NAAQS,'' to address all of the CAA section 110(a)(2) requirements, 
except for section 110(a)(2)(G) \21\ for the 2008 Pb NAAQS (2011 Pb I-
SIP Submittal).
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    \21\ In a separate rulemaking, EPA fully approved Arizona's SIP 
to address the requirements regarding air pollution emergency 
episodes in CAA section 110(a)(2)(G) for the 1997 8-hour ozone 
NAAQS. 77 FR 62452 (October 15, 2012). Although ADEQ did not submit 
an analysis of Section 110(a)(2)(G) requirements, we discuss them in 
our TSD, which is in the docket for this rulemaking.
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     December 27, 2012--``Arizona State Implementation Plan 
Revision under Clean Air Act Section 110(a)(2) and (2); 2008 8-hour 
Ozone NAAQS,'' to address all of the CAA section 110(a)(2) requirements 
for the 2008 8-hour Ozone NAAQS (2012 Ozone I-SIP Submittal).
     December 6, 2013--``Submittal of Maricopa County Rule 100 
revising the Maricopa County Portion of the Arizona State 
Implementation Plan for Section 110(a)(2) Infrastructure'' from Eric 
Massey, Director of ADEQ (2013 Maricopa County Submittal). Maricopa 
County Rule 100 was submitted to address a deficiency in section 
110(a)(2)(E)(ii) of the SIP for Maricopa County concerning conflict of 
interest requirements for hearing boards.
     December 19, 2013--``Submittal of Pima County Rules 
revising the Pima County Portion of the Arizona State Implementation 
Plan for Section 110(a)(2) Infrastructure'' from Eric Massey, Director 
of ADEQ (2013 Pima County Submittal). This submittal included Pima 
County Rule 17.04.190 ``Composition,'' adopted September 28, 1993; Pima 
County Rule 17.12.040 ``Reporting for Compliance Evaluations,'' adopted 
September 28, 1993; and Pima County Rule 17.24.040 ``Reporting 
Requirements,'' adopted April 19, 2005 for inclusion into the Arizona 
SIP. These rules were submitted to address deficiencies in section 
110(a)(2)(E)(ii) of the SIP concerning conflict of interest 
requirements for hearing boards and section 110(a)(2)(F) of the SIP 
concerning stationary source monitoring and reporting.
     September 4, 2014--``Submittal of Pinal County Rule 1-3-
140 Revising the Pinal County Portion of the Arizona State 
Implementation Plan for Section 110(a)(2) Infrastructure'' from Eric 
Massey, Director of ADEQ (2014 Pinal

[[Page 69801]]

County Submittal). This submittal included Pinal County Rule 1-3-140 
``Definitions,'' adopted July 23, 2014 for inclusion into the Arizona 
SIP. Pinal County Rule 1-3-140 was submitted to address a deficiency in 
section 110(a)(2)(E)(ii) of the SIP for Pinal County concerning 
conflict of interest requirements for hearing boards.
    We find that these submittals meet the procedural requirements for 
public participation under CAA section 110(a)(2) and 40 CFR 51.102.
    In addition to the above infrastructure submittals, on October 29, 
2012, ADEQ submitted ``New Source Review State Implementation Plan 
Submission'' as well as ``Supplemental Information to 2012 New Source 
Review State Implementation Plan Submission'' on July 2, 2014. In 
addition to addressing revisions to Arizona's New Source Review (NSR) 
program, these submissions also relate to I-SIP elements in CAA 
sections 110(a)(2)(C), (D), (J) and (K), which EPA is not acting on in 
today's rulemaking. The I-SIP elements in CAA sections 110(a)(2)(C), 
(D), (J) and (K) will be addressed in a future rulemaking.

IV. EPA's Evaluation and Proposed Action

    EPA has evaluated the 2011 Pb I-SIP Submittal, the 2012 Ozone I-SIP 
Submittal, the 2013 Maricopa County Submittal, the 2013 Pima County 
Submittal, and the 2014 Pinal County Submittal, as well as the existing 
provisions of the Arizona SIP for compliance with the CAA section 
110(a) requirements for the 2008 Pb and 2008 ozone NAAQS. Our Technical 
Support Document (TSD) contains more detailed evaluations and is 
available in the public docket for this rulemaking, which may be 
accessed online at http://www.regulations.gov, docket number EPA-R09-
OAR-2014-0258.
    Based upon this analysis, EPA proposes to approve the 2011 Pb I-SIP 
Submittal, the 2012 Ozone I-SIP Submittal, the 2013 Maricopa County 
Submittal, the 2013 Pima County Submittal and the 2013 Pinal County 
Submittal with respect to the following infrastructure SIP 
requirements:
     Section 110(a)(2)(A): Emission limits and other control 
measures.
     Section 110(a)(2)(B): Ambient air quality monitoring/data 
system.
     Section 110(a)(2)(E): Adequate resources and authority, 
conflict of interest, and oversight of local and regional government 
agencies.
     Section 110(a)(2)(F): Stationary source monitoring and 
reporting.
     Section 110(a)(2)(G): Emergency episodes.
     Section 110(a)(2)(H): SIP revisions.
     Section 110(a)(2)(K): Air quality modeling and submission 
of modeling data.
     Section 110(a)(2)(L): Permitting fees.
     Section 110(a)(2)(M): Consultation/participation by 
affected local entities.
    In addition, we are proposing to approve into the SIP certain 
regulatory provisions included in the 2013 Pima County and Maricopa 
County Submittals, and in the 2014 Pinal County Submittal, as discussed 
in the TSD.\22\
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    \22\ Copies of these Arizona county regulations are included in 
the 2013 Pima County and Maricopa County Submittals, and 2014 Pinal 
County Submittal, which are available in the docket for this action 
and online at http://regulations.gov, docket number EPA-R09-OAR-
2014-0258.
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    On November 5, 2012, EPA approved in part and disapproved in part 
State Implementation Plan (SIP) revisions submitted by the state of 
Arizona pursuant to the requirements of the Clean Air Act (CAA) for the 
1997 8-hour ozone NAAQS and the 1997 and 2006 NAAQS for fine 
particulate matter (PM2.5).\23\ In today's action, we 
propose to approve certain portions of the previously disapproved 
infrastructure SIP action. Specifically, today's proposed action will 
correct the previous deficiencies with respect to CAA section 
110(a)(2)(E)(ii) for Maricopa, Pima, and Pinal Counties and section 
110(a)(2)(F) for Pima County. If finalized before the end of the two-
year FIP deadline established by our 2012 action on Arizona's I-SIP for 
the 1997 8-hour ozone NAAQS and 1997 and 2006 PM2.5 NAAQS, 
approval of these infrastructure SIP elements would relieve EPA of the 
obligation to promulgate a FIP, as required under CAA Section 
110(c)(1).
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    \23\ 77 FR 66398 (November 5, 2012).
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    We are not proposing to act today on those elements of the 
infrastructure SIP that address the requirements of sections 
110(a)(2)(C), (D), (J) and (K) of the Act. On October 29, 2012, ADEQ 
submitted ``New Source Review State Implementation Plan Submission'' 
and on July 2, 2014 submitted ``Supplemental Information to 2012 New 
Source Review State Implementation Plan Submission''. These submissions 
address the permitting portions of I-SIP elements in CAA sections 
110(a)(2)(C), (D), (J) and (K) and will be addressed in a subsequent 
rulemaking.
    Section 110(l) of the Act prohibits EPA from approving any SIP 
revision that would interfere with any applicable requirement 
concerning attainment and reasonable further progress (RFP) or any 
other applicable requirement of the Act. All of the elements of the 
infrastructure SIP that we are proposing to approve, as explained in 
the TSD, would improve the SIP by replacing obsolete statutes or 
regulations and by updating the state and local agencies' SIP 
implementation and enforcement authorities. We propose to determine 
that our approval of the elements discussed above would comply with CAA 
section 110(l) because the proposed SIP revision would not interfere 
with the on-going process for ensuring that requirements for RFP and 
attainment of the NAAQS are met, and the SIP revision clarifies and 
updates the SIP. Our TSD contains a more detailed discussion of our 
evaluation.

V. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a 
SIP submission that complies with the provisions of the Act and 
applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). 
Thus, in reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. 
Accordingly, this action merely proposes to approve 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 Order 
12866 (58 FR 51735, October 4, 1993);
     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

[[Page 69802]]

Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) 
because application of those requirements would be inconsistent with 
the Clean Air Act; and
     does not provide 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).
    In addition, this proposed rule does not have tribal implications 
as specified by Executive Order 13175 (65 FR 67249, November 9, 2000), 
because the SIP is not approved to apply in Indian country located in 
the state, and EPA notes that it will not 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, Ozone, Lead, Reporting and 
recordkeeping requirements.

    Dated: September 30, 2014.
Jared Blumenfeld,
Regional Administrator, Region IX.
[FR Doc. 2014-27752 Filed 11-21-14; 8:45 am]
BILLING CODE 6560-50-P


