
[Federal Register Volume 77, Number 70 (Wednesday, April 11, 2012)]
[Rules and Regulations]
[Pages 21676-21679]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-8733]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2011-0934; FRL-9333-6]


Silicic Acid, Sodium Salt etc.; Tolerance Exemption

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation establishes an exemption from the requirement 
of a tolerance for residues of Silicic acid, sodium salt, reaction 
products with chlorotrimethylsilane and iso-propyl alcohol, reaction 
with poly(oxypropylene)-poly(oxyethylene) glycol; when used as an inert 
ingredient in a pesticide chemical formulation. Dow Corning Corporation 
submitted a petition to EPA under the Federal Food, Drug, and Cosmetic 
Act (FFDCA), requesting an exemption from the requirement of a 
tolerance. This regulation eliminates the need to establish a maximum 
permissible level for residues of Silicic acid, sodium salt, reaction 
products with chlorotrimethylsilane and iso-propyl alcohol, reaction 
with poly(oxypropylene)-poly(oxyethylene) glycol on food or feed 
commodities.

DATES: This regulation is effective April 11, 2012. Objections and 
requests for hearings must be received on or before June 11, 2012, and 
must be filed in accordance with the instructions provided in 40 CFR 
part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).

ADDRESSES: EPA has established a docket for this action under docket 
identification (ID) number EPA-HQ-OPP-2011-0934. All documents in the 
docket are listed in the docket index available at http://www.regulations.gov. Although listed in the index, some information is 
not publicly available, e.g., Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. Certain 
other material, such as copyrighted material, is not placed on the 
Internet and will be publicly available only in hard copy form. 
Publicly available docket materials are available in the electronic 
docket at http://www.regulations.gov, or, if only available in hard 
copy, at the OPP Regulatory Public Docket in Rm. S-4400, One Potomac 
Yard (South Bldg.), 2777 S. Crystal Dr., Arlington, VA. The Docket 
Facility is open from 8:30 a.m. to 4 p.m., Monday through Friday, 
excluding legal holidays. The Docket Facility telephone number is (703) 
305-5805.

FOR FURTHER INFORMATION CONTACT: Alganesh Debesai, Registration 
Division (7505P), Office of Pesticide Programs, Environmental 
Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-
0001; telephone number: (703) 308-8353; email address: 
debesai.alganesh@epa.gov.

SUPPLEMENTARY INFORMATION: 

I. General Information

A. Does this action apply to me?

    You may be potentially affected by this action if you are an 
agricultural producer, food manufacturer, or pesticide manufacturer. 
Potentially affected entities may include, but are not limited to:
     Crop production (NAICS code 111).
     Animal production (NAICS code 112).
     Food manufacturing (NAICS code 311).
     Pesticide manufacturing (NAICS code 32532).
    This listing is not intended to be exhaustive, but rather provides 
a guide for readers regarding entities likely to be affected by this 
action. Other types of entities not listed in this unit could also be 
affected. The North American Industrial Classification System (NAICS) 
codes have been provided to assist you and others in determining 
whether this action might apply to certain entities. If you have any 
questions regarding the applicability of this action to a particular 
entity, consult the person listed under FOR FURTHER INFORMATION 
CONTACT.

B. How can I get electronic access to other related information?

    You may access a frequently updated electronic version of 40 CFR 
part 180 through the Government Printing Office's e-CFR site at http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl.

C. Can I file an objection or hearing request?

    Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an 
objection to any aspect of this regulation and may also request a 
hearing on those objections. You must file your objection or request a 
hearing on this regulation in accordance with the instructions provided 
in 40 CFR part 178. To ensure proper receipt by EPA, you must identify 
docket ID number EPA-HQ-OPP-2011-0934 in the subject line on the first 
page of your submission. All objections and requests for a hearing

[[Page 21677]]

must be in writing, and must be received by the Hearing Clerk on or 
before June 11, 2012. Addresses for mail and hand delivery of 
objections and hearing requests are provided in 40 CFR 178.25(b).
    In addition to filing an objection or hearing request with the 
Hearing Clerk as described in 40 CFR part 178, please submit a copy of 
the filing that does not contain any CBI for inclusion in the public 
docket. Information not marked confidential pursuant to 40 CFR part 2 
may be disclosed publicly by EPA without prior notice. Submit a copy of 
your non-CBI objection or hearing request, identified by docket ID 
number EPA-HQ-OPP-2011-0934, by one of the following methods.
     Federal eRulemaking Portal: http://www.regulations.gov. 
Follow the on-line instructions for submitting comments.
     Mail: Office of Pesticide Programs (OPP) Regulatory Public 
Docket (7502P), Environmental Protection Agency, 1200 Pennsylvania Ave. 
NW., Washington, DC 20460-0001.
     Delivery: OPP Regulatory Public Docket (7502P), 
Environmental Protection Agency, Rm. S-4400, One Potomac Yard (South 
Bldg.), 2777 S. Crystal Dr., Arlington, VA. Deliveries are only 
accepted during the Docket Facility's normal hours of operation (8:30 
a.m. to 4 p.m., Monday through Friday, excluding legal holidays). 
Special arrangements should be made for deliveries of boxed 
information. The Docket Facility telephone number is (703) 305-5805.

II. Background and Statutory Findings

    In the Federal Register of Thursday, December 8, 2011 (76 FR 76674) 
(FRL-9328-8), EPA issued a notice pursuant to section 408 of FFDCA, 21 
U.S.C. 346a, announcing the receipt of a pesticide petition (PP 1E7877) 
filed by Dow Corning Corporation, 2200 W. Salzburg Road, Midland, MI. 
The petition requested that 40 CFR 180.960 be amended by establishing 
an exemption from the requirement of a tolerance for residues of 
Silicic acid, sodium salt, reaction products with chlorotrimethylsilane 
and iso-propyl alcohol, reaction with poly(oxypropylene)-
poly(oxyethylene) glycol. That notice included a summary of the 
petition prepared by the petitioner and solicited comments on the 
petitioner's request. The Agency received one comment. EPA's response 
to this comment is discussed in Unit VIII.C.
    Section 408(c)(2)(A)(i) of FFDCA allows EPA to establish an 
exemption from the requirement for a tolerance (the legal limit for a 
pesticide chemical residue in or on a food) only if EPA determines that 
the exemption is ``safe.'' Section 408(c)(2)(A)(ii) of FFDCA defines 
``safe'' to mean that ``there is a reasonable certainty that no harm 
will result from aggregate exposure to the pesticide chemical residue, 
including all anticipated dietary exposures and all other exposures for 
which there is reliable information.'' This includes exposure through 
drinking water and use in residential settings, but does not include 
occupational exposure. Section 408(b)(2)(C) of FFDCA requires EPA to 
give special consideration to exposure of infants and children to the 
pesticide chemical residue in establishing an exemption from the 
requirement of a tolerance and to ``ensure that there is a reasonable 
certainty that no harm will result to infants and children from 
aggregate exposure to the pesticide chemical residue * * *'' and 
specifies factors EPA is to consider in establishing an exemption.

III. Risk Assessment and Statutory Findings

    EPA establishes exemptions from the requirement of a tolerance only 
in those cases where it can be shown that the risks from aggregate 
exposure to pesticide chemical residues under reasonably foreseeable 
circumstances will pose no appreciable risks to human health. In order 
to determine the risks from aggregate exposure to pesticide inert 
ingredients, the Agency considers the toxicity of the inert in 
conjunction with possible exposure to residues of the inert ingredient 
through food, drinking water, and through other exposures that occur as 
a result of pesticide use in residential settings. If EPA is able to 
determine that a finite tolerance is not necessary to ensure that there 
is a reasonable certainty that no harm will result from aggregate 
exposure to the inert ingredient, an exemption from the requirement of 
a tolerance may be established.
    Consistent with FFDCA section 408(b)(2)(D), EPA has reviewed the 
available scientific data and other relevant information in support of 
this action and considered its validity, completeness and reliability 
and the relationship of this information to human risk. EPA has also 
considered available information concerning the variability of the 
sensitivities of major identifiable subgroups of consumers, including 
infants and children. In the case of certain chemical substances that 
are defined as polymers, the Agency has established a set of criteria 
to identify categories of polymers expected to present minimal or no 
risk. The definition of a polymer is given in 40 CFR 723.250(b) and the 
exclusion criteria for identifying these low-risk polymers are 
described in 40 CFR 723.250(d). Silicic acid, sodium salt, reaction 
products with chlorotrimethylsilane and iso-propyl alcohol, reaction 
with poly(oxypropylene)-poly(oxyethylene) glycol conforms to the 
definition of a polymer given in 40 CFR 723.250(b) and meets the 
following criteria that are used to identify low-risk polymers.
    1. The polymer is not a cationic polymer nor is it reasonably 
anticipated to become a cationic polymer in a natural aquatic 
environment.
    2. The polymer does contain as an integral part of its composition 
the atomic elements carbon, hydrogen, and oxygen.
    3. The polymer does not contain as an integral part of its 
composition, except as impurities, any element other than those listed 
in 40 CFR 723.250(d)(2)(ii).
    4. The polymer is neither designed nor can it be reasonably 
anticipated to substantially degrade, decompose, or depolymerize.
    5. The polymer is manufactured or imported from monomers and/or 
reactants that are already included on the TSCA Chemical Substance 
Inventory or manufactured under an applicable TSCA section 5 exemption.
    6. The polymer is not a water absorbing polymer with a number 
average molecular weight (MW) greater than or equal to 10,000 daltons.
    Additionally, the polymer also meets as required the following 
exemption criteria specified in 40 CFR 723.250(e): The polymer's number 
average MW of 75,000 is greater than or equal to 10,000 daltons. The 
polymer contains less than 2% oligomeric material below MW 500 and less 
than 5% oligomeric material below MW 1,000.
    Thus, Silicic acid, sodium salt, reaction products with 
chlorotrimethylsilane and iso-propyl alcohol, reaction with 
poly(oxypropylene)-poly(oxyethylene) glycol meets the criteria for a 
polymer to be considered low risk under 40 CFR 723.250. Based on its 
conformance to the criteria in this unit, no mammalian toxicity is 
anticipated from dietary, inhalation, or dermal exposure to Silicic 
acid, sodium salt, reaction products with chlorotrimethylsilane and 
iso-propyl alcohol, reaction with poly(oxypropylene)-poly(oxyethylene) 
glycol.

IV. Aggregate Exposures

    For the purposes of assessing potential exposure under this 
exemption, EPA considered that Silicic acid, sodium salt, reaction 
products

[[Page 21678]]

with chlorotrimethylsilane and iso-propyl alcohol, reaction with 
poly(oxypropylene)-poly(oxyethylene) glycol could be present in all raw 
and processed agricultural commodities and drinking water, and that 
non-occupational non-dietary exposure was possible. The number average 
MW of Silicic acid, sodium salt, reaction products with 
chlorotrimethylsilane and iso-propyl alcohol, reaction with 
poly(oxypropylene)-poly(oxyethylene) glycol is 75,000 daltons. 
Generally, a polymer of this size would be poorly absorbed through the 
intact gastrointestinal tract or through intact human skin. Since 
Silicic acid, sodium salt, reaction products with chlorotrimethylsilane 
and iso-propyl alcohol, reaction with poly(oxypropylene)-
poly(oxyethylene) glycol conform to the criteria that identify a low-
risk polymer, there are no concerns for risks associated with any 
potential exposure scenarios that are reasonably foreseeable. The 
Agency has determined that a tolerance is not necessary to protect the 
public health.

V. Cumulative Effects From Substances With a Common Mechanism of 
Toxicity

    Section 408(b)(2)(D)(v) of FFDCA requires that, when considering 
whether to establish, modify, or revoke a tolerance, the Agency 
consider ``available information'' concerning the cumulative effects of 
a particular pesticide's residues and ``other substances that have a 
common mechanism of toxicity.''
    EPA has not found Silicic acid, sodium salt, reaction products with 
chlorotrimethylsilane and iso-propyl alcohol, reaction with 
poly(oxypropylene)-poly(oxyethylene) glycol to share a common mechanism 
of toxicity with any other substances, and Silicic acid, sodium salt, 
reaction products with chlorotrimethylsilane and iso-propyl alcohol, 
reaction with poly(oxypropylene)-poly(oxyethylene) glycol does not 
appear to produce a toxic metabolite produced by other substances. For 
the purposes of this tolerance action, therefore, EPA has assumed that 
Silicic acid, sodium salt, reaction products with chlorotrimethylsilane 
and iso-propyl alcohol, reaction with poly(oxypropylene)-
poly(oxyethylene) glycol does not have a common mechanism of toxicity 
with other substances. For information regarding EPA's efforts to 
determine which chemicals have a common mechanism of toxicity and to 
evaluate the cumulative effects of such chemicals, see EPA's Web site 
at http://www.epa.gov/pesticides/cumulative.

VI. Additional Safety Factor for the Protection of Infants and Children

    Section 408(b)(2)(C) of FFDCA provides that EPA shall apply an 
additional tenfold margin of safety for infants and children in the 
case of threshold effects to account for prenatal and postnatal 
toxicity and the completeness of the data base unless EPA concludes 
that a different margin of safety will be safe for infants and 
children. Due to the expected low toxicity of Silicic acid, sodium 
salt, reaction products with chlorotrimethylsilane and iso-propyl 
alcohol, reaction with poly(oxypropylene)-poly(oxyethylene) glycol, EPA 
has not used a safety factor analysis to assess the risk. For the same 
reasons the additional tenfold safety factor is unnecessary.

VII. Determination of Safety

    Based on the conformance to the criteria used to identify a low-
risk polymer, EPA concludes that there is a reasonable certainty of no 
harm to the U.S. population, including infants and children, from 
aggregate exposure to residues of Silicic acid, sodium salt, reaction 
products with chlorotrimethylsilane and iso-propyl alcohol, reaction 
with poly(oxypropylene)-poly(oxyethylene) glycol.

VIII. Other Considerations

A. Analytical Enforcement Methodology

    An analytical method is not required for enforcement purposes since 
the Agency is establishing an exemption from the requirement of a 
tolerance without any numerical limitation.

B. International Residue Limits

    In making its tolerance decisions, EPA seeks to harmonize U.S. 
tolerances with international standards whenever possible, consistent 
with U.S. food safety standards and agricultural practices. EPA 
considers the international maximum residue limits (MRLs) established 
by the Codex Alimentarius Commission (Codex), as required by FFDCA 
section 408(b)(4). The Codex Alimentarius is a joint U.N. Food and 
Agriculture Organization/World Health Organization food standards 
program, and it is recognized as an international food safety 
standards-setting organization in trade agreements to which the United 
States is a party. EPA may establish a tolerance that is different from 
a Codex MRL; however, FFDCA section 408(b)(4) requires that EPA explain 
the reasons for departing from the Codex level.
    The Codex has not established a MRL for Silicic acid, sodium salt, 
reaction products with chlorotrimethylsilane and iso-propyl alcohol, 
reaction with poly(oxypropylene)-poly(oxyethylene) glycol.

IX. Conclusion

    Accordingly, EPA finds that exempting residues of Silicic acid, 
sodium salt, reaction products with chlorotrimethylsilane and iso-
propyl alcohol, reaction with poly(oxypropylene)-poly(oxyethylene) 
glycol from the requirement of a tolerance will be safe.

X. Statutory and Executive Order Reviews

    This final rule establishes an exemption from the requirement of a 
tolerance under section 408(d) of FFDCA in response to a petition 
submitted to the Agency. The Office of Management and Budget (OMB) has 
exempted these rules from review under Executive Order 12866, entitled 
Regulatory Planning and Review (58 FR 51735, October 4, 1993). Because 
this final rule has been exempted from review under Executive Order 
12866, this final rule is not subject to Executive Order 13211, 
entitled Actions Concerning Regulations That Significantly Affect 
Energy Supply, Distribution, or Use (66 FR 28355, May 22, 2001) or 
Executive Order 13045, entitled Protection of Children From 
Environmental Health Risks and Safety Risks (62 FR 19885, April 23, 
1997). This final rule does not contain any information collections 
subject to OMB approval under the Paperwork Reduction Act (PRA), 44 
U.S.C. 3501 et seq., nor does it involve any technical standards that 
would require Agency consideration of voluntary consensus standards 
pursuant to section 12(d) of the National Technology Transfer and 
Advancement Act of 1995 (NTTAA), Public Law 104-113, section 12(d) (15 
U.S.C. 272 note).
    Since tolerances and exemptions that are established on the basis 
of a petition under section 408(d) of FFDCA, such as the tolerance in 
this final rule, do not require the issuance of a proposed rule, the 
requirements of the Regulatory Flexibility Act (RFA) (5 U.S.C. 601 et 
seq.) do not apply.
    This final rule directly regulates growers, food processors, food 
handlers, and food retailers, not States or tribes, nor does this 
action alter the relationships or distribution of power and 
responsibilities established by Congress in the preemption provisions 
of section 408(n)(4) of FFDCA. As such, the Agency has determined that 
this

[[Page 21679]]

action will not have a substantial direct effect on States or tribal 
governments, on the relationship between the national government and 
the States or tribal governments, or on the distribution of power and 
responsibilities among the various levels of government or between the 
Federal Government and Indian tribes, or otherwise have any unique 
impacts on local governments. Thus, the Agency has determined that 
Executive Order 13132, entitled Federalism (64 FR 43255, August 10, 
1999) and Executive Order 13175, entitled Consultation and Coordination 
with Indian Tribal Governments (65 FR 67249, November 9, 2000) do not 
apply to this final rule. In addition, this final rule does not impose 
any enforceable duty or contain any unfunded mandate as described under 
Title II of the Unfunded Mandates Reform Act of 1995 (UMRA) (Pub. L, 
104-4).
    Although this action does not require any special considerations 
under Executive Order 12898, entitled Federal Actions To Address 
Environmental Justice in Minority Populations and Low-Income 
Populations (59 FR 7629, February 16, 1994), EPA seeks to achieve 
environmental justice, the fair treatment and meaningful involvement of 
any group, including minority and/or low-income populations, in the 
development, implementation, and enforcement of environmental laws, 
regulations, and policies. As such, to the extent that information is 
publicly available or was submitted in comments to EPA, the Agency 
considered whether groups or segments of the population, as a result of 
their location, cultural practices, or other factors, may have atypical 
or disproportionately high and adverse human health impacts or 
environmental effects from exposure to the pesticide discussed in this 
document, compared to the general population.
    One comment was received from a private citizen who opposed the 
authorization to sell any pesticide that leaves residue on food. The 
Agency understands the commenter's concerns and recognizes that some 
individuals believe that no residue of pesticides should be allowed. 
However, under the existing legal framework provided by section 408 of 
the Federal Food, Drug and Cosmetic Act (FFDCA) EPA is authorized to 
establish pesticide tolerances or exemptions where persons seeking such 
tolerances or exemptions have demonstrated that the pesticide meets the 
safety standard imposed by the statute.

XI. Congressional Review Act

    The Congressional Review Act, 5 U.S.C. 801 et seq., generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report to each House of the Congress and to 
the Comptroller General of the United States. EPA will submit a report 
containing this rule and other required information to the U.S. Senate, 
the U.S. House of Representatives, and the Comptroller General of the 
United States prior to publication of this rule in the Federal 
Register. This rule is not a ``major rule'' as defined by 5 U.S.C. 
804(2).

List of Subjects in 40 CFR Part 180

    Environmental protection, Administrative practice and procedure, 
Agricultural commodities, Pesticides and pests, Reporting and 
recordkeeping requirements.

    Dated: April 3, 2012.
Lois Rossi,
Director, Registration Division, Office of Pesticide Programs.
    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

0
1. The authority citation for part 180 continues to read as follows:

    Authority:  21 U.S.C. 321(q), 346a and 371.

0
2. In Sec.  180.960, the table is amended by adding alphabetically the 
following polymer to read as follows:


Sec.  [emsp14]180.960  Polymer; exemptions from the requirement of a 
tolerance.

* * * * *

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                    Polymer                              CAS No.
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                              * * * * * * *
Silicic acid, sodium salt, reaction products    None.
 with chlorotrimethylsilane and iso-propyl
 alcohol, reaction with poly(oxypropylene)-
 poly(oxyethylene) glycol, minimum number
 average molecular weight (in amu), 75,000.
 
                              * * * * * * *
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[FR Doc. 2012-8733 Filed 4-10-12; 8:45 am]
BILLING CODE 6560-50-P


