35424 Federal Register / Vol. 83, No. 144 / Thursday, July 26, 2018 / Rules and Regulations 

appropriate circuit by September 24, 

2018. Filing a petition for 

reconsideration by the Administrator of 

this final rule does not affect the finality 

of this action for the purposes of judicial 

review nor does it extend the time 

within which a petition for judicial 

review may be filed, and shall not 

postpone the effectiveness of such rule 

or action. This action may not be 

challenged later in proceedings to 

enforce its requirements. (See section 

307(b)(2).) 

List of Subjects in 40 CFR Part 62 

Environmental protection, 

Administrative practice and procedure, 

Air pollution control, Hospital/medical/ 

infectious waste incinerators, 

Intergovernmental relations, Reporting 

and recordkeeping requirements. 

Dated: July 9, 2018. 

Cathy Stepp, 

Regional Administrator, Region 5. 

40 CFR part 62 is amended as follows: 

PART 62—APPROVAL AND 

PROMULGATION OF STATE PLANS 

FOR DESIGNATED FACILITIES AND 

POLLUTANTS 

■ 1. The authority citation for part 62 

continues to read as follows: 

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

■ 2. Revise § 62.8880 to read as follows: 

§ 62.8880 Identification of plan. 

On January 24, 2018, the Ohio 

Environmental Protection Agency 

submitted a letter to EPA certifying that 

there is only one Hospital/Medical/ 

Infectious Waste Incinerator unit in the 

State of Ohio subject to the emissions 

guidelines at 40 CFR part 60, subpart 

DDDD and requesting that the Federal 

Plan at 40 CFR part 62, subpart HHH 

apply. 

[FR Doc. 2018–16002 Filed 7–25–18; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 180 

[EPA–HQ–OPP–2018–0036; FRL–9980–20] 

1,1-Difluoroethane; Exemption From 

the Requirement of a Tolerance 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Final rule. 

SUMMARY: This regulation amends an 

exemption from the requirement of a 

tolerance to allow for residues of 1,1- 

difluoroethane (CAS Reg. No. 75–37–6) 

when used as an inert ingredient 

(aerosol propellant) in bird repellent 

pesticide products applied to growing 

crops and raw agricultural commodities 

after harvest and to animals. Pyxis 

Regulatory Consulting, on behalf of 

Avian Enterprises Limited LLC, 

submitted a petition to EPA under the 

Federal Food, Drug, and Cosmetic Act 

(FFDCA), requesting an amendment to 

an existing requirement of a tolerance. 

This regulation eliminates the need to 

establish a maximum permissible level 

for residues of 1,1-difluoroethane when 

used in accordance with the terms of the 

exemption. 

DATES: This regulation is effective July 

26, 2018. Objections and requests for 

hearings must be received on or before 

September 24, 2018, 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: The docket for this action, 

identified by docket identification (ID) 

number EPA–HQ–OPP–2018–0036, is 

available at http://www.regulations.gov 

or at the Office of Pesticide Programs 

Regulatory Public Docket (OPP Docket) 

in the Environmental Protection Agency 

Docket Center (EPA/DC), West William 

Jefferson Clinton Bldg., Rm. 3334, 1301 

Constitution Ave. NW, Washington, DC 

20460–0001. The Public Reading Room 

is open from 8:30 a.m. to 4:30 p.m., 

Monday through Friday, excluding legal 

holidays. The telephone number for the 

Public Reading Room is (202) 566–1744, 

and the telephone number for the OPP 

Docket is (703) 305–5805. Please review 

the visitor instructions and additional 

information about the docket available 

at http://www.epa.gov/dockets. 

FOR FURTHER INFORMATION CONTACT: 

Michael L. Goodis, Registration Division 

(7505P), Office of Pesticide Programs, 

Environmental Protection Agency, 1200 

Pennsylvania Ave. NW, Washington, DC 

20460–0001; main telephone number: 

(703) 305–7090; email address: 

RDFRNotices@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. The following 

list of North American Industrial 

Classification System (NAICS) codes is 

not intended to be exhaustive, but rather 

provides a guide to help readers 

determine whether this document 

applies to them. Potentially affected 

entities may include: 

• Crop production (NAICS code 111). 

• Animal production (NAICS code 

112). 

• Food manufacturing (NAICS code 

311). 

• Pesticide manufacturing (NAICS 

code 32532). 

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://

www.ecfr.gov/cgi-bin/textidx?&c=ecfr&tpl=/ecfrbrowse/Title40/ 

40tab_02.tpl. 

C. How 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–2018–0036 in the subject line on 

the first page of your submission. All 

objections and requests for a hearing 

must be in writing, and must be 

received by the Hearing Clerk on or 

before September 24, 2018. 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 (excluding 

any Confidential Business Information 

(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 the non-CBI copy of your 

objection or hearing request, identified 

by docket ID number EPA–HQ–OPP– 

2018–0036, by one of the following 

methods: 

• Federal eRulemaking Portal: http:// 

www.regulations.gov. Follow the online 

instructions for submitting comments. 

Do not submit electronically any 

information you consider to be CBI or 

other information whose disclosure is 

restricted by statute. 

• Mail: OPP Docket, Environmental 

Protection Agency Docket Center (EPA/ 

DC), (28221T), 1200 Pennsylvania Ave. 

NW, Washington, DC 20460–0001. 

• Hand Delivery: To make special 

arrangements for hand delivery or 

delivery of boxed information, please 

follow the instructions at http://

www.epa.gov/dockets/contacts.html. 


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Federal Register / Vol. 83, No. 144 / Thursday, July 26, 2018 / Rules and Regulations 35425 

Additional instructions on 

commenting or visiting the docket, 

along with more information about 

dockets generally, is available at http:// 

www.epa.gov/dockets. 

II. Petition for Exemption 

In the Federal Register of March 21, 

2018 (82 FR 12311) (FRL–9974–76), 

EPA issued a document pursuant to 

FFDCA section 408, 21 U.S.C. 346a, 

announcing the filing of a pesticide 

petition (IN–11082) by Pyxis Regulatory 

Consulting (4110 136TH ST CT NW, Gig 

Harbor, WA 98332) on behalf of Avian 

Enterprises Limited LLC (2000 Pontiac 

Drive, Sylvan Lake, MI 48320). The 

petition requested that 40 CFR 180.910 

and 40 CFR 180.930 be amended by 

modifying the current exemptions from 

the requirement of a tolerance for 

residues of 1,1-difluoroethane (CAS Reg. 

No. 75–37–6) when used as an inert 

ingredient (propellant) in pesticide 

formulations applied to growing crops 

and to raw agricultural commodities 

after harvest and to animals to allow for 

the additional use in bird repellant 

pesticide formulations applied to 

growing crops, raw agricultural 

commodities after harvest, and animals. 

That document referenced a summary of 

the petition prepared by Pyxis 

Regulatory Consulting on behalf of 

Avian Enterprises Limited LLC, the 

petitioner, which is available in the 

docket, http://www.regulations.gov. No 

relevant comments were received on the 

notice of filing. 

III. Inert Ingredient Definition 

Inert ingredients are all ingredients 

that are not active ingredients as defined 

in 40 CFR 153.125 and include, but are 

not limited to, the following types of 

ingredients (except when they have a 

pesticidal efficacy of their own): 

Solvents such as alcohols and 

hydrocarbons; surfactants such as 

polyoxyethylene polymers and fatty 

acids; carriers such as clay and 

diatomaceous earth; thickeners such as 

carrageenan and modified cellulose; 

wetting, spreading, and dispersing 

agents; propellants in aerosol 

dispensers; microencapsulating agents; 

and emulsifiers. The term ‘‘inert’’ is not 

intended to imply nontoxicity; the 

ingredient may or may not be 

chemically active. Generally, EPA has 

exempted inert ingredients from the 

requirement of a tolerance based on the 

low toxicity of the individual inert 

ingredients. 

IV. Aggregate Risk Assessment and 

Determination of Safety 

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(b)(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 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 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 . . . .’’ 

EPA establishes exemptions from the 

requirement of a tolerance only in those 

cases where it can be clearly 

demonstrated 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(c)(2)(A), and the factors specified in 

FFDCA section 408(c)(2)(B), EPA has 

reviewed the available scientific data 

and other relevant information in 

support of this action. EPA has 

sufficient data to assess the hazards of 

and to make a determination on 

aggregate exposure for 1,1- 

difluoroethane including exposure 

resulting from the exemption 

established by this action. EPA’s 

assessment of exposures and risks 

associated with 1,1-difluoroethane 

follows. 

A. Toxicological Profile 

EPA has evaluated the available 

toxicity data and considered their 

validity, completeness, and reliability as 

well as the relationship of the results of 

the studies 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. Specific 

information on the studies received and 

the nature of the adverse effects caused 

by 1,1-difluoroethane as well as the noobserved-adverse-effect-level (NOAEL) 

and the lowest-observed-adverse-effectlevel (LOAEL) from the toxicity studies 

are discussed in this unit. 

In an acute inhalation toxicity study 

in rats for 1,1-difluoroethane, the lethal 

concentration, LC50 is >475,500 parts 

per million (ppm) (oral equivalent 

approximately 235,399 milligram/ 

kilogram/day (mg/kg/day)). 

No adverse toxic effects are observed 

in rats treated via inhalation with 1,1- 

difluoroethane following subchronic 

exposure up to 100,000 ppm (oral 

equivalent approximately 82,600 mg/kg/ 

day), chronic exposure up to 25,000 

ppm (oral equivalent approximately 

20,649 mg/kg/day) or developmental 

toxicity studies at doses up to 50,000 

ppm (oral equivalent approximately 

41,300 mg/kg/day), the highest dose 

tested in each exposure scenario. 

Although reproduction toxicity 

studies are not available with 1,1- 

difluoroethane, EPA does not expect 

1,1-difluoroethane to cause any 

reproductive toxicity effects. Fetal 

susceptibility was not observed in the 

developmental toxicity study via 

inhalation with rats treated with 1,1- 

difluoroethane as neither maternal nor 

developmental toxicity is observed up 

to 50,000 ppm (oral equivalent 

approximately 41,300 mg/kg/day), the 

highest dose tested. Additionally, no 

signs of systemic toxicity or 

reproduction organ toxicity are observed 

following subchronic and chronic 

exposures at 100,000 ppm (oral 

equivalent approximately 82,600 mg/kg/ 

day) and 25,000 ppm (oral equivalent 

approximately 20,649 mg/kg/day), the 

highest doses tested, respectively. 

Toxicity is not observed in the 

carcinogenicity/chronic toxicity study 

via inhalation with rats treated with 1,1- 

difluoroethane up to 25,000 ppm (oral 

equivalent approximately 20,649 mg/kg/ 

day), the highest dose tested. Therefore, 

1,1-difluoroethane is not expected to be 

carcinogenic. 

Mutagenicity studies are available 

with 1,1-difluoroethane. The bacterial 

reverse mutation test and the 

micronucleus test were negative. The 

mammalian chromosomal aberration 

test in human lymphocytes gave a weak 

positive response and the sex-linked 

recessive lethal test in Drosophila 

melanogaster gave a positive response. 


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35426 Federal Register / Vol. 83, No. 144 / Thursday, July 26, 2018 / Rules and Regulations 

Based on the submitted studies the 

mutagenic potential of 1,1- 

difluoroethane is equivocal. 

Neurotoxicity and immunotoxicity 

studies are not available for review. 

However, evidence of neurotoxicity and 

immunotoxicity is not observed in the 

submitted studies. 

The metabolism study was conducted 

with difluoromethane which is 

structurally similar to 1,1- 

difluoroethane. Difluoromethane differs 

only by a carbon atom and is considered 

a suitable surrogate chemical as it 

would be expected to be metabolized in 

a fashion similar to1,1-difluoroethane. 

Therefore, data from the metabolism 

study conducted with difluoromethane 

are used to describe 1,1-difluoroethane 

metabolism. Based on the metabolism 

study in rats treated with 

difluoromethane, 1,1-difluoroethane is 

expected to be poorly absorbed and 

rapidly metabolized. Of the absorbed 

dose, most is expected to be 

metabolized and excreted via exhaled 

carbon dioxide and organics followed 

by excretion in the urine and feces. 

B. Toxicological Points of Departure/ 

Levels of Concern 

The available toxicity studies indicate 

that 1,1-difluoroethane has a very low 

overall toxicity. The lowest NOAEL in 

the database was 25,000 ppm 

(approximately 20,649 mg/kg/day 

human equivalent oral dose) observed 

in a chronic/carcinogenicity toxicity 

study in rats via the inhalation route of 

exposure. Since signs of toxicity were 

not observed at levels well above the 

limit dose (1,000 mg/kg/day) an 

endpoint of concern for risk assessment 

purposes was not identified. Therefore, 

since no endpoint of concern was 

identified for the acute and chronic 

dietary exposure assessment as well as 

for short- and intermediate-term dermal 

and inhalation exposure, a qualitative 

risk assessment for 1,1-difluoroethane 

was conducted. 

C. Exposure Assessment 

1. Dietary exposure from food and 

feed uses. In evaluating dietary 

exposure to 1,1-difluoroethane, EPA 

considered exposure under the 

proposed exemptions from the 

requirement of a tolerance, as well as 

the existing exemptions and from other 

dietary sources of exposure. EPA 

assessed dietary exposures from 1,1- 

difluoroethane in food as follows: 

Dietary exposure (food) to 1,1- 

difluoroethane can occur following 

ingestion of foods with residues from 

treated crops or animals or from the use 

of 1,1-difluoroethane as an aerosol 

propellent in consumer products used 

in or on food. However, a dietary 

exposure assessment was not conducted 

since no endpoint of concern was 

identified in the available database. 

2. Dietary exposure from drinking 

water. Since a hazard endpoint of 

concern was not identified for the acute 

and chronic dietary assessment, a 

quantitative dietary exposure risk 

assessment for drinking water was not 

conducted, although exposures may be 

expected from use on food crops and 

runoff in the ground water. 

3. From non-dietary exposure. The 

term ‘‘residential exposure’’ is used in 

this document to refer to nonoccupational, non-dietary exposure 

(e.g., textiles (clothing and diapers), 

carpets, swimming pools, and hard 

surface disinfection on walls, floors, 

tables). 

1,1-Difluoroethane may be used in 

pesticide products and non-pesticide 

products that may be used in and 

around the home. Based on the 

discussion above, a quantitative 

residential exposure assessment for 1,1- 

difluoroethane was not conducted. 

4. 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.’’ 

Based on the available data, 1,1- 

difluoroethane does not have a toxic 

mechanism; therefore, section 

408(b)(2)(D)(v) does not apply. 

D. Safety Factor for Infants and 

Children 

1. In general. Section 408(b)(2)(C) of 

FFDCA provides that EPA shall apply 

an additional tenfold (10X) 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 database on toxicity 

and exposure unless EPA determines 

based on reliable data that a different 

margin of safety will be safe for infants 

and children. This additional margin of 

safety is commonly referred to as the 

Food Quality Protection Act Safety 

Factor (FQPA SF). In applying this 

provision, EPA either retains the default 

value of 10X, or uses a different 

additional safety factor when reliable 

data available to EPA support the choice 

of a different factor. 

As part of its qualitative assessment, 

the Agency did not use safety factors for 

assessing risk, and no additional safety 

factor is needed for assessing risk to 

infants and children. Based on an 

assessment of 1,1-difluoroethane, EPA 

has concluded that there are no 

toxicological endpoints of concern for 

the U.S. population, including infants 

and children. 

E. Aggregate Risks and Determination of 

Safety 

Because no toxicological endpoints of 

concern were identified, EPA concludes 

that the exemptions from the 

requirement of a tolerance to residues of 

1,1-difluoroethane are safe, i.e., there is 

a reasonable certainty that no harm will 

result to the general population, or to 

infants and children, from aggregate 

exposure to 1,1-difluoroethane residues. 

V. 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. 

VI. Conclusions 

Therefore, the exemptions from the 

requirement of a tolerance for residues 

of 1,1-difluoroethane (CAS Reg. No. 75– 

37–6) contained in 40 CFR 180.910 and 

180.930 are amended to add the use of 

1,1-difluoroethane in bird repellent 

pesticide formulations. 

VII. Statutory and Executive Order 

Reviews 

This action amends exemptions from 

the requirement of a tolerance under 

FFDCA section 408(d) in response to a 

petition submitted to the Agency. The 

Office of Management and Budget 

(OMB) has exempted these types of 

actions from review under Executive 

Order 12866, entitled ‘‘Regulatory 

Planning and Review’’ (58 FR 51735, 

October 4, 1993). Because this action 

has been exempted from review under 

Executive Order 12866, this action 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), nor is it considered a 

regulatory action subject to Executive 

Order 13771, entitled ‘‘Reducing 

Regulations and Controlling Regulatory 

Costs’’ (82 FR 9339, February 3, 2017). 

This action 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 require any special 

considerations under Executive Order 

12898, entitled ‘‘Federal Actions to 


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Federal Register / Vol. 83, No. 144 / Thursday, July 26, 2018 / Rules and Regulations 35427 

Address Environmental Justice in 

Minority Populations and Low-Income 

Populations’’ (59 FR 7629, February 16, 

1994). 

Since tolerances and exemptions that 

are amended on the basis of a petition 

under FFDCA section 408(d), such as 

the tolerance exemption 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 action 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 FFDCA 

section 408(n)(4). 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 action. In addition, this action 

does not impose any enforceable duty or 

contain any unfunded mandate as 

described under Title II of the Unfunded 

Mandates Reform Act (UMRA) (2 U.S.C. 

1501 et seq.). 

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 

(NTTAA) (15 U.S.C. 272 note). 

VIII. Congressional Review Act 

Pursuant to the Congressional Review 

Act (5 U.S.C. 801 et seq.), 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 the rule in the Federal 

Register. This action 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: July 11, 2018. 

Michael L. Goodis, 

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 § 180.910, revise the inert 

ingredient ‘‘1,1-Difluoroethane (CAS 

Reg. No. 75–37–6)’’ in the table to read 

as follows: 

§ 180.910 Inert ingredients used pre- and 

post-harvest; exemptions from the 

requirement of a tolerance. 

Inert ingredients Limits Uses 

*******

1,1-Difluoroethane (CAS Reg. No. 75– 

37–6).

In pesticide formulations used for insect control in food- and feed-handling establishments and animals; in bird repellent pesticide formulations.Aerosol propellant. 

* * * * * * * 

■ 3. In § 180.930, revise the inert 

ingredient 1,1-Difluoroethane (CAS Reg. 

No. 75–37–6) in the table to read as 

follows: 

§ 180.930 Inert ingredients applied to 

animals; exemptions from the requirement 

of a tolerance. 

Inert ingredients Limits Uses 

*******

1,1-Difluoroethane (CAS Reg. No. 75– 

37–6).

In pesticide formulations used for insect control in food- and feed-handling establishments and animals; in bird repellent pesticide formulations.Aerosol propellant. 

* * * * * * * 

[FR Doc. 2018–15997 Filed 7–25–18; 8:45 am] 

BILLING CODE 6560–50–P 


sradovich on DSK3GMQ082PROD with RULES