Federal Register / Vol. 75, No. 51 / Wednesday, March 17, 2010 / Rules and Regulations 12695 

and responsibilities established by 

Congress in the preemption provisions 

of section 408(n)(4) of FFDCA. As such, 

the Agency has determined that this 

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. 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) (Public Law 104–4). 

This action does not 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). 

VII. 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 final rule in the 

Federal Register. This final 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: March 8, 2010. 

Lois Rossi, 

Director, Registration Division, Office of 

Pesticide Programs. 

■ Therefore, 40 CFR chapter I is 

amended as follows: 

PART 180—[AMENDED] 

■ 1. The authority citation for part 180 

continues to read as follows: 

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

■ 2. § 180.448 revise the introductory 

text in paragraph (a), and revise the 

entry ‘‘Grape‘‘ in the table in paragraph 

(a), and revise introductory text in 

paragraphs (b), and (c) to read as 

follows: 

§180.448 Hexythiazox; tolerance for 

residues. 

(a) General. Tolerances are 

established for residues of hexythiazox, 

including its metabolites and 

degradates, in or on the commodities in 

the table below. Compliance with the 

tolerance levels specified below is to be 

determined by measuring only 

hexythiazox and its metabolites 

containing the (4-chlorophenyl)-4- 

methyl-2-oxo-3-thiazolidine moiety, 

calculated as the stoichiometric 

equivalent of hexythiazox. 

Commodity Parts per million 

*****

Grape ....................................................................................................................... 1.0

*****

(b) Section 18 emergency exemptions. 

Time-limited tolerances are established 

for residues of hexythiazox, including 

its metabolites and degradates, in 

connection with use of the pesticide 

under section 18 emergency exemptions 

granted by EPA. Compliance with the 

tolerance levels specified below is to be 

determined by measuring only 

hexythiazox and its metabolites 

containing the (4-chlorophenyl)-4- 

methyl-2-oxo-3-thiazolidine moiety, 

calculated as the stoichiometric 

equivalent of hexythiazox. These 

tolerances will expire and are revoked 

on the dates specified in the following 

table: 

* * * * * 

(c) Tolerances with regional 

registrations. Tolerances with regional 

registrations as defined by 40CFR 

180.1(n), are established for residues of 

hexythiazox, including its metabolites 

and degradates, in or on the 

commodities in the table below. 

Compliance with the tolerance levels 

specified below is to be determined by 

measuring only hexythiazox and its 

metabolites containing the (4- 

chlorophenyl)-4-methyl-2-oxo-3- 

thiazolidine moiety, calculated as the 

stoichiometric equivalent of 

hexythiazox. 

* * * * * 

[FR Doc. 2010–5692 Filed 3–16–10; 8:45 am] 

BILLING CODE 6560–50–S 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 180 

[EPA–HQ–OPP–2009–0845; FRL–8814–3] 

Tetraethoxysilane, Polymer with 

Hexamethyldisiloxane; Tolerance 

Exemption 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Final rule. 

SUMMARY: This regulation establishes an 

exemption from the requirement of a 

tolerance for residues of 

tetraethoxysilane, polymer with 

hexamethyldisiloxane, minimum 

number average molecular weight (in 

AMU) 2,500 (CAS Reg. No. 104133–09– 

7) when used as an inert ingredient in 

a pesticide chemical formulation under 

40 CFR 180.960. Wacker Chemical 

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 

tetraethoxysilane, polymer with 

hexamethyldisiloxane, on food or feed 

commodities. 

DATES: This regulation is effective 

March 17, 2010. Objections and requests 

for hearings must be received on or 

before May 17, 2010, 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 


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identification (ID) number EPA–HQ– 

OPP–2009–0845. 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: 

Deirdre Sunderland, Registration 

Division (7505P), Office of Pesticide 

Programs, Environmental Protection 

Agency, 1200 Pennsylvania Ave., NW., 

Washington, DC 20460–0001; telephone 

number: (703) 603–0851; e-mail address: 

sunderland.deirdre@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 Access Electronic Copies 

of this Document? 

You may access a frequently updated 

electronic version of 40 CFR part 180 

through the Government Printing 

Office’s pilot e-CFR site at http:// 

www.gpoaccess.gov/ecfr. 

C. Can I File an Objection or Hearing 

Request? 

Under section 408(g) of FFDCA, 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. The EPA procedural 

regulations which govern the 

submission of objections and requests 

for hearings appear in 40 CFR part 178. 

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–2009–0845, in the subject line on 

the first page of your submission. All 

requests must be in writing, and must be 

mailed or delivered to the Hearing Clerk 

on or before May 17, 2010. 

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 that is described in 

ADDRESSES. Information not marked 

confidential pursuant to 40 CFR part 2 

may be disclosed publicly by EPA 

without prior notice. Submit your 

copies, identified by docket ID number 

EPA–HQ–OPP–2009–0845, 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 January 6, 

2010 (75 FR 864) (FRL–8801–5), EPA 

issued a notice pursuant to section 408 

of FFDCA, 21 U.S.C. 346a, announcing 

the receipt of a pesticide petition (PP 

9E7634) filed by Wacker Chemical 

Corporation, 3301 Sutton Rd., Adrian, 

MI 49221–9397. The petition requested 

that 40 CFR 180.960 be amended by 

establishing an exemption from the 

requirement of a tolerance for residues 

of tetraethoxysilane, polymer with 

hexamethyldisiloxane, minimum 

number average molecular weight (in 

AMU) 2,500, (CAS No. 104133–09–7). 

That notice included a summary of the 

petition prepared by the petitioner and 

solicited comments on the petitioner’s 

request. The Agency did not receive any 

comments. 

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 tolerance 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 


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exposure to the inert ingredient, an 

exemption from the requirement of a 

tolerance may be established. 

Consistent with section 408(b)(2)(D) 

of FFDCA, 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). Tetraethoxysilane, polymer 

with hexamethyldisiloxane, 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). 

7. The polymer’s number average MW 

of 2,500 daltons is greater than 1,000 

and less than 10,000 daltons. The 

polymer contains less than 10% 

oligomeric material below MW 500 and 

less than 25% oligomeric material 

below MW 1,000, and the polymer does 

not contain any reactive functional 

groups. 

Thus, tetraethoxysilane, polymer with 

hexamethyldisiloxane, 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 tetraethoxysilane, polymer 

with hexamethyldisiloxane. 

IV. Aggregate Exposures 

For the purposes of assessing 

potential exposure under this 

exemption, EPA considered that 

tetraethoxysilane, polymer with 

hexamethyldisiloxane 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 tetraethoxysilane, 

polymer with hexamethyldisiloxane is 

2,500 daltons. Generally, a polymer of 

this size would be poorly absorbed 

through the intact gastrointestinal tract 

or through intact human skin. Since 

tetraethoxysilane, polymer with 

hexamethyldisiloxane 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 

Section 408 (b)(2)(D)(v) of FFDCA 

requires that, when considering whether 

to establish, modify, or revoke a 

tolerance or tolerance exemption, the 

Agency consider ‘‘available information’’ 

concerning the cumulative effects of a 

particular chemical’s residues and 

‘‘other substances that have a common 

mechanism of toxicity.’’ For the 

purposes of this tolerance action, EPA 

has not assumed that tetraethoxysilane, 

polymer with hexamethyldisiloxane has 

a common mechanism of toxicity with 

other substances, based on the 

anticipated absence of mammalian 

toxicity. 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 the policy statements released by 

EPA’s Office of Pesticide Programs 

concerning common mechanism 

determinations and procedures for 

cumulating effects from substances 

found to have a common mechanism on 

EPA’s website 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 tetraethoxysilane, polymer 

with hexamethyldisiloxane, 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 tetraethoxysilane, polymer 

with hexamethyldisiloxane. 

VIII. Other Considerations 

A. Endocrine Disruptor 

EPA is required under the Federal 

Food, Drug and Cosmetic Act (FFDCA), 

as amended by FQPA, to develop a 

screening program to determine whether 

certain substances (including all 

pesticide active and other ingredients) 

‘‘may have an effect in humans that is 

similar to an effect produced by a 

naturally occurring estrogen, or other 

such endocrine effects as the 

Administrator may designate.’’ 

Following recommendations of its 

Endocrine Disruptor and Testing 

Advisory Committee (EDSTAC), EPA 

determined that there was a scientific 

basis for including, as part of the 

program, the androgen and thyroid 

hormone systems, in addition to the 

estrogen hormone system. EPA also 

adopted EDSTAC’s recommendation 

that the Program include evaluations of 

potential effects in wildlife. For 

pesticide chemicals, EPA will use 

FIFRA and, to the extent that effects in 

wildlife may help determine whether a 

substance may have an effect in 

humans, FFDCA authority to require the 

wildlife evaluations. As the science 

develops and resources allow, screening 

of additional hormone systems may be 

added to the Endocrine Disruptor 

Screening Program (EDSP). 

When additional appropriate 

screening and/or testing protocols being 

considered under the Agency’s EDSP 

have been developed tetraethoxysilane, 

polymer with hexamethyldisiloxane 


wwoods2 on DSK1DXX6B1PROD with RULES_PART 1
12698 Federal Register / Vol. 75, No. 51 / Wednesday, March 17, 2010 / Rules and Regulations 

may be subjected to further screening 

and/or testing to better characterize 

effects related to endocrine disruption. 

B. 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. 

C. International Tolerances 

The Agency is not aware of any 

country requiring a tolerance for 

tetraethoxysilane, polymer with 

hexamethyldisiloxane, nor have any 

CODEX Maximum Residue Levels 

(MRLs) been established for any food 

crops at this time. 

IX. Conclusion 

Accordingly, EPA finds that 

exempting residues of tetraethoxysilane, 

polymer with hexamethyldisiloxane, 

from the requirement of a tolerance will 

be safe. 

X. Statutory and Executive Order 

Reviews 

This final rule establishes 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 

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 or 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) (Public 

Law 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. 

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: March 8, 2010. 

Lois Rossi, 

Director, Registration Division, Office of 

Pesticide Programs. 

■ Therefore, 40 CFR chapter I is 

amended as follows: 

PART 180—[AMENDED] 

■ 1. The authority citation for part 180 

continues to read as follows: 

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

■ 2. In §180.960, in the table, add 

alphabetically the following polymers to 

read as follows: 

§ 180.960 Polymers; exemptions from the 

requirement of a tolerance. 

* * * * * 

Polymer CAS No. 

*****

Tetraethoxysilane, 

polymer with 

hexamethyldisiloxane, minimum number average molecular weight (in 

AMU) 2,500.

CAS Reg. No. 

104133–09–7 

*****

[FR Doc. 2010–5691 Filed 3–16; 8:45 am] 

BILLING CODE 6560–50–S 

DEPARTMENT OF COMMERCE 

National Oceanic and Atmospheric 

Administration 

50 CFR Part 229 

[Docket No. 080721862–91321–03] 

RIN 0648–AW51 

Taking of Marine Mammals Incidental 

to Commercial Fishing Operations; 

Harbor Porpoise Take Reduction Plan 

Regulations 

AGENCY: National Marine Fisheries 

Service (NMFS), National Oceanic and 

Atmospheric Administration (NOAA), 

Commerce. 


wwoods2 on DSK1DXX6B1PROD with RULES_PART 1