Federal Register / Vol. 71, No. 47 / Friday, March 10, 2006 / Proposed Rules 12311 

this action, no further activity is 

contemplated. If EPA receives 

significant adverse comments, the direct 

final rule will be withdrawn and all 

public comments received will be 

addressed in a subsequent final rule 

based on this proposed rule. EPA will 

not institute a second comment period. 

Any parties interested in commenting 

on this action should do so at this time. 

Please note that if EPA receives 

significant adverse comment on an 

amendment, paragraph, or section of 

this rule and if that provision may be 

severed from the remainder of the rule, 

EPA may adopt as final those provisions 

of the rule that are not the subject of an 

adverse comment. 

For additional information, see the 

direct final rule which is located in the 

rules section of this Federal Register. 

Dated: February 28, 2006. 

Richard E. Greene, 

Regional Administrator, Region 6. 

[FR Doc. 06–2316 Filed 3–9–06; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 721 

[EPA–HQ–OPPT–2005–0015; FRL–7740–6] 

RIN 2070–AJ18 

Perfluoroalkyl Sulfonates; Proposed 

Significant New Use Rule 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed rule. 

SUMMARY: EPA is proposing to amend a 

significant new use rule (SNUR) under 

section 5(a)(2) of the Toxic Substances 

Control Act (TSCA) to include certain 

perfluoroalkyl sulfonates (PFAS) 

substances. EPA is proposing to amend 

the PFAS SNUR at 40 CFR 721.9582 by 

adding a new Table 3 containing the 

remaining PFAS chemicals on the TSCA 

Inventory that are not already regulated 

by the SNUR. This proposed rule would 

require manufacturers, including 

importers, to notify EPA at least 90 days 

before commencing the manufacture or 

import of the PFAS chemicals listed in 

Table 3 of the regulatory text proposed 

herein for the significant new uses 

described in this document on or after 

April 10, 2006. EPA believes that this 

action is necessary because these 

chemical substances may be hazardous 

to human health and the environment. 

The required notice will provide EPA 

the opportunity to evaluate intended 

significant new uses and associated 

activities before they occur and, if 

necessary, to prohibit or limit those uses 

or activities. 

DATES: Comments must be received on 

or before April 10, 2006. 

ADDRESSES: Submit your comments, 

identified by docket identification (ID) 

number EPA–HQ–OPPT–2005–0015, by 

one of the following methods: 

• http://www.regulations.gov. Follow 

the on-line instructions for submitting 

comments. 

• E-mail: oppt.ncic@epa.gov. 

• Mail: Document Control Office 

(7407M), Office of Pollution Prevention 

and Toxics (OPPT), Environmental 

Protection Agency, 1200 Pennsylvania 

Ave., NW., Washington, DC 20460–

0001. 

• Hand Delivery: OPPT Document 

Control Office (DCO), EPA East Bldg., 

Rm. 6428, 1201 Constitution Ave., NW., 

Washington, DC. Attention: Docket ID 

number EPA–HQ–OPPT–2005–0015. 

The DCO is open from 8 a.m. to 4 p.m., 

Monday through Friday, excluding legal 

holidays. The telephone number for the 

DCO is (202) 564–8930. Such deliveries 

are only accepted during the Docket’s 

normal hours of operation, and special 

arrangements should be made for 

deliveries of boxed information. 

Instructions: Direct your comments to 

docket ID number EPA–HQ–OPPT–

2005–0015. EPA’s policy is that all 

comments received will be included in 

the public docket without change and 

may be made available on-line at http:// 

www.regulations.gov, including any 

personal information provided, unless 

the comment includes information 

claimed to be Confidential Business 

Information (CBI) or other information 

whose disclosure is restricted by statute. 

Do not submit information that you 

consider to be CBI or otherwise 

protected through regulations.gov or email. The regulations.gov website 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 e-mail comment directly 

to EPA without going through 

regulations.gov your e-mail 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 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, is not placed on 

the Internet and will be publicly 

available only in hard copy form. 

Publicly available docket materials are 

available electronically through 

regulations.gov or in hard copy at the 

OPPT Docket, EPA Docket Center (EPA/ 

DC), EPA West, Rm. B102, 1301 

Constitution Ave., NW., Washington, 

DC. The EPA Docket Center 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 OPPT Docket is (202) 

566–0280. 

FOR FURTHER INFORMATION CONTACT: For 

general information contact: Colby 

Lintner, Regulatory Coordinator, 

Environmental Assistance Division 

(7408M), Office of Pollution Prevention 

and Toxics, Environmental Protection 

Agency, 1200 Pennsylvania Ave., NW., 

Washington, DC 20460–0001; telephone 

number: (202) 554–1404; e-mail address: 

TSCA-Hotline@epa.gov. 

For technical information contact: 

Amy Breedlove, Chemical Control 

Division (7405M), Office of Pollution 

Prevention and Toxics, Environmental 

Protection Agency, 1200 Pennsylvania 

Ave., NW., Washington, DC 20460–

0001; telephone number: (202) 564–

9823; e-mail address: 

breedlove.amy@epa.gov. 

SUPPLEMENTARY INFORMATION: 

I. General Information 

A. Does this Action Apply to Me? 

You may be potentially affected by 

this action if you manufacture (defined 

by statute to include import) any of the 

chemical substances that are listed in 

Table 3 in § 721.9582(a)(1) of the 

proposed regulatory text. 

Persons who intend to import any 

chemical substance governed by a final 

SNUR are subject to the TSCA section 

13 (15 U.S.C. 2612) import certification 

requirements, and to the regulations 

codified at 19 CFR 12.118 through 

12.127 and 127.28. Those persons must 

certify that they are in compliance with 

the SNUR requirements. The EPA policy 

in support of import certification 

appears at 40 CFR part 707, subpart B. 

In addition, any persons who export or 

intend to export a chemical substance 


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that is the subject of this proposed rule 

on or after April 10, 2006 are subject to 

the export notification provisions of 

TSCA section 12(b) (15 U.S.C. 2611(b)) 

(see 40 CFR 721.20), and must comply 

with the export notification 

requirements in 40 CFR part 707, 

subpart D. Potentially affected entities 

may include, but are not limited to: 

• Manufacturers (defined by statute to 

include importers) of one or more of the 

subject chemical substances (NAICS 325 

and 324110), e.g., chemical 

manufacturing and petroleum refineries. 

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. To determine whether 

you or your business may be affected by 

this action, you should carefully 

examine the applicability provisions in 

40 CFR 721.5 and 40 CFR 721.9582 as 

proposed herein. Also consult Unit II. If 

you have any questions regarding the 

applicability of this action to a 

particular entity, consult the technical 

person listed under FOR FURTHER

INFORMATION CONTACT. 

B. What Should I Consider as I Prepare 

My Comments for EPA? 

1. Submitting CBI. Do not submit this 

information to EPA through 

regulations.gov or e-mail. Clearly mark 

the part or all of the information that 

you claim to be CBI. For CBI 

information in a disk or CD ROM that 

you mail to EPA, mark the outside of the 

disk or CD ROM as CBI and then 

identify electronically within the disk or 

CD ROM the specific information that is 

claimed as CBI. In addition to one 

complete version of the comment that 

includes information claimed as CBI, a 

copy of the comment that does not 

contain the information claimed as CBI 

must be submitted for inclusion in the 

public docket. Information so marked 

will not be disclosed except in 

accordance with procedures set forth in 

40 CFR part 2. 

2. Tips for preparing your comments. 

When submitting comments, remember 

to: 

i. Identify the document by docket 

number and other identifying 

information (subject heading, Federal 

Register date, and page number). 

ii. Follow directions. The Agency may 

ask you to respond to specific questions 

or organize comments by referencing a 

Code of Federal Regulations (CFR) part 

or section number. 

iii. Explain why you agree or disagree; 

suggest alternatives and substitute 

language for your requested changes. 

iv. Describe any assumptions and 

provide any technical information and/ 

or data that you used. 

v. If you estimate potential costs or 

burdens, explain how you arrived at the 

estimate. 

vi. Provide specific examples to 

illustrate your concerns and suggested 

alternatives. 

vii. Explain your views as clearly as 

possible, avoiding the use of profanity 

or personal threats. 

viii. Make sure to submit your 

comments by the comment period 

deadline identified. 

II. Background 

A. What Action is the Agency Taking? 

On October 18, 2000, EPA published 

in the Federal Register a proposed 

SNUR (65 FR 62319) (FRL–6745–5) (Ref. 

1) to regulate the chemicals referred to 

as perfluorooctyl sulfonates (PFOS). The 

structure and definition of those 

chemicals affected by the proposed 

SNUR were described on page 62325, 

Unit IV.A. of that proposed rule. The 

corresponding final rule was published 

in the Federal Register on March 11, 

2002 (67 FR 11008) (FRL–6823–6), for 

13 perfluoroalkyl sulfonates (PFAS) 

chemicals (Ref. 2). In response to 

comments, EPA agreed to use the 

generic term perfluoroalkyl sulfonates 

(PFAS) to encompass more generally 

this category of perfluorinated 

compounds, which includes those with 

eight carbons (C8) as well as those with 

higher and lower amounts of carbon. 

The Agency also agreed to use the term 

PFOS to represent only those chemical 

substances that are predominantly C8. A 

supplemental proposed SNUR for 75 

other similar PFAS chemicals was 

published in the Federal Register on 

March 11, 2002 (67 FR 11014) (FRL–

6823–7) (Ref. 3). EPA promulgated a 

final rule for these 75 PFAS chemicals 

on December 9, 2002 (67 FR 72854) 

(FRL–7279–1) (Ref. 4). As used in this 

proposal, the term PFAS refers to a 

general category of perfluorinated 

sulfonate compounds and includes 

compounds of carbon chain lengths 

greater than four. The term PFOS refers 

to a subcategory of PFAS compounds 

that have an eight-carbon chain length. 

EPA believed that those actions were 

necessary because data showed that 

certain alkyl chain lengths of the PFAS 

chemicals are toxic to human health, 

bioaccumulate, and are persistent in the 

environment. The December 9, 2002 

final rule designated manufacture and 

import for any use of the specific PFAS 

chemicals listed in Tables 1 and 2 of 40 

CFR 721.9582 as significant new uses 

with the following four exceptions for 

chemical substances in Table 2: 

• Use as an anti-erosion additive in 

fire-resistant phosphate ester aviation 

hydraulic fluids. 

• Use as a component of a photoresist 

substance, including a photo acid 

generator or surfactant, or as a 

component of an anti-reflective coating, 

used in a photomicrolithography 

process to produce semiconductors or 

similar components of electronic or 

other miniaturized devices. 

• Use in coatings for surface tension, 

static discharge, and adhesion control 

for analog and digital imaging films, 

papers, and printing plates, or as a 

surfactant in mixtures used to process 

imaging films. 

• Use as an intermediate only to 

produce other chemical substances to be 

used solely for the uses listed in 

exceptions 1 through 3. 

EPA is proposing to add 183 PFAS 

chemicals to the SNUR at 40 CFR 

721.9582. The 183 chemicals are listed 

in Table 3 which appears in the 

proposed regulatory text. EPA believes 

that this action is warranted given the 

similarity of these chemicals to those 

currently included in 40 CFR 721.9582 

and the strong likelihood of similar 

health and environmental concerns, as 

discussed in Unit III.A. Specifically, the 

Agency is proposing to designate as a 

‘‘significant new use’’ the manufacture, 

including import, for any use of the 

chemical substances listed in Table 3 of 

the proposed regulatory text; however, 

the Agency is also proposing to make 

the excepted uses described in 40 CFR 

721.9582(a)(3) applicable to the 

chemicals listed in Table 3 of the 

proposed regulatory text. The listed 

chemical substances in Table 3 are on 

the TSCA Inventory and have carbon 

chains greater than, or equal to, C5 with 

the PFAS chemical structure. This 

action also includes those chemicals 

with ranges of carbon chains shorter 

than C5 but that extend beyond C5, for 

example, C4–C12. EPA specifically 

solicits comment on whether there is 

any ongoing manufacture or import of 

the chemicals subject to this proposed 

rule as well as information on any uses 

of such chemicals. 

This proposed rule would require 

persons to notify EPA at least 90 days 

before commencing the manufacture 

(including import) of the chemical 

substances identified in Table 3 of the 

proposed regulatory text for the 

following significant new uses: 


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• The manufacture, including import, 

for any use of any of the chemicals 

listed in Table 3 of the proposed 

regulatory text. 

• However, the manufacture or 

import of any chemical listed in Table 

3 of the proposed regulatory text for one 

or more of the following specific uses 

shall not be considered as a significant 

new use subject to reporting: 

1. Use as an anti-erosion additive in 

fire-resistant phosphate ester aviation 

hydraulic fluids. 

2. Use as a component of a photoresist 

substance, including a photo acid 

generator or surfactant, or as a 

component of an anti-reflective coating, 

used in a photomicrolithography 

process to produce semiconductors or 

similar components of electronic or 

other miniaturized devices. 

3. Use in coating for surface tension, 

static discharge, and adhesion control 

for analog and digital imaging films, 

papers, and printing plates, or as a 

surfactant in mixtures used to process 

imaging films. 

4. Use as an intermediate only to 

produce other chemical substances to be 

used solely for the uses listed in 1., 2., 

or 3. 

EPA is proposing to extend the 

exceptions to these chemicals due to the 

possibility that their use profiles are 

similar to those already covered in the 

SNUR. EPA is soliciting comment on 

whether the excepted uses are still 

necessary for the chemicals listed in 

Table 3 of the proposed regulatory text 

and depending on comments received 

may decide not to extend the exceptions 

in some or all cases. The original 

exceptions were granted based on 

limited volume of the uses, the extent of 

controls on exposure and releases, and 

the absence of viable alternatives. 

B. What is the Agency’s Authority for 

Taking this Action? 

Section 5(a)(2) of TSCA (15 U.S.C. 

2604(a)(2)) authorizes EPA to determine 

that a use of a chemical substance is a 

‘‘significant new use.’’ EPA must make 

this determination by promulgating a 

rule after considering all relevant 

factors, including those listed in TSCA 

section 5(a)(2). These factors include the 

projected production volume of a 

chemical substance; the extent to which 

a use changes or increases the type, 

form, magnitude, or duration of 

exposure to the substance; and the 

reasonably anticipated manner of 

producing, processing, distributing, or 

disposing of the substance. EPA 

construes the statute to allow 

consideration of any other relevant 

factors, in addition to those listed in 

section 5(a)(2). Once EPA determines 

that a use of a chemical substance is a 

significant new use, and promulgates a 

SNUR, section 5(a)(1)(B) of TSCA 

requires persons to submit a Significant 

New Use Notice (SNUN) to EPA at least 

90 days before they manufacture, 

import, or process the chemical 

substance for that use. 

C. Applicability of General Provisions 

General regulatory provisions for 

SNURs appear in 40 CFR part 721, 

subpart A. These provisions describe 

persons subject to the rule, 

recordkeeping requirements, and 

exemptions to reporting requirements. 

Provisions relating to user fees appear at 

40 CFR part 700. Persons subject to the 

final SNUR must comply with many of 

the same notice requirements and EPA 

regulatory procedures as submitters of 

premanufacture notices (PMNs) under 

section 5(a)(1)(A) of TSCA. Those 

requirements include the information 

submission requirements of TSCA 

section 5(b) and 5(d)(1), the exemptions 

authorized by TSCA section 5(h)(1), (2), 

(3), and (5), and the regulations at 40 

CFR part 720 (see 40 CFR 721.1(c)). 

Receipt of a SNUN by EPA may trigger 

regulatory action under TSCA sections 

5(e), 5(f), 6, or 7, if appropriate, to 

control the activities described in the 

SNUN. If EPA does not take action after 

receipt of a SNUN, EPA is required 

under TSCA section 5(g) to explain in 

the Federal Register its reasons for not 

taking action. 

Persons who intend to export a 

substance identified in a proposed or 

final SNUR are subject to the export 

notification provisions of TSCA section 

12(b). The regulations that implement 

TSCA section 12(b) appear at 40 CFR 

part 707, subpart D. Persons who intend 

to import a chemical substance 

identified in a final SNUR are subject to 

the TSCA section 13 import certification 

requirements, which are codified at 19 

CFR 12.118 through 12.127 and 127.28. 

Such persons must certify that they are 

in compliance with TSCA sections 5, 6, 

and 7 requirements. The EPA policy on 

import certification appears at 40 CFR 

part 707, subpart B. 

III. Rationale for this Proposed Rule 

A. What are the Environmental 

Characteristics of PFAS? 

All of the chemical substances in 

Table 3 of the proposed regulatory text 

are referred to collectively in this 

proposed rule as perfluoroalkyl 

sulfonates, or PFAS. There is evidence 

that PFAS chemicals degrade back to 

perfluoroalkylsulfonic acid (PFASA), 

which exists in the anionic form in the 

environment, or to PFASA precursors. 

Further degradation of PFASA is not 

observed under normal environmental 

conditions. In fact, PFASA is highly 

persistent in the environment and has a 

tendency to bioaccumulate (Refs. 6 and 

7). PFASA can continue to be formed by 

any PFAS containing chemicals 

introduced into the environment. 

Studies have found PFAS chemicals 

containing five to fourteen carbons (C5–

C14) in very small quantities in the 

blood of the general human population 

as well as in wildlife, indicating that 

exposure to the chemicals is widespread 

(Refs. 6, 7, and 8). 

Biological sampling has discovered 

the presence of certain perfluoroalkyl 

compounds in fish and in fish-eating 

birds across the United States and in 

locations in Canada, Sweden, and the 

South Pacific (Ref. 6). The wide 

distribution of the chemicals in high 

trophic levels is strongly suggestive of 

the potential for bioaccumulation and/ 

or bioconcentration. 

Based on currently available 

information, EPA believes that while all 

PFAS chemicals are expected to persist, 

the length of the perfluorinated chain 

may also have an effect on 

bioaccumulation and toxicity, which are 

also characteristics of concern for these 

chemicals. PFAS chemicals with longer 

carbon chain lengths may be of greater 

concern than those with shorter chain 

lengths (Refs. 9, 10, and 11). 

B. What are the Health Effects of PFAS? 

The hazard assessment published by 

the Organization for Economic 

Cooperation and Development (OECD) 

(Ref. 15) concluded that PFOS is 

persistent, bioaccumulative and toxic to 

mammalian species. While most studies 

to date have focused primarily on PFOS 

(with eight carbons (C8)), structureactivity relationship analysis indicates 

that the results of those studies are 

applicable to the category of PFAS 

chemicals, which includes PFOS. 

Available test data have raised concerns 

about their potential developmental, 

reproductive, and systemic toxicity 

(Refs. 6, 7, and 8). 

Toxicology studies show that PFOS, 

as measured in its anionic form, is well 

absorbed orally and distributes 

primarily to the serum and liver. It does 

not appear to be further metabolized. 

Elimination from the body is slow and 

occurs via both urine and feces. Serum 

PFOS levels in three retired male 3M 

Company chemical workers have been 

tracked and suggest a mean elimination 

half-life in humans of approximately 4 

years (Ref. 8). Epidemiologic studies 

have shown an association between 

PFOS exposure and the incidence of 


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bladder cancer, although further work is 

needed (Ref. 15). 

Studies on PFOS generally indicate 

moderate toxicity to environmental 

species (fish, aquatic plants and 

invertebrates, amphibians and birds), 

although in the case of honey bees, high 

toxicity was observed (Ref. 15). 

C. What are the Uses and Production 

Levels of these Chemicals? 

The Agency believes that the 183 

PFAS chemicals included in this 

proposal are no longer being 

manufactured for any uses in the United 

States, except possibly for excepted uses 

under 40 CFR 721.9582(a)(3). As 

mentioned in Unit II.A., EPA is 

soliciting comment on the need for the 

excepted uses for the chemicals listed in 

Table 3 of the proposed regulatory text. 

3M Company, the principal domestic 

manufacturer of PFAS chemicals, has 

publicly committed to using 

perfluorobutane sulfonate (PFBS) (a four 

carbon (C4) based PFAS) instead of 

PFOS or other PFAS chemicals in its 

products (Ref. 5). The Agency has no 

indication that the PFAS chemicals 

covered by this proposal are in 

commercial production for any use; 

however, there could be instances 

where these chemicals are produced in 

amounts that fall below any reporting 

thresholds, e.g., under the Inventory 

Update Rule at 40 CFR part 710, and 

therefore EPA would be unaware of 

their production. 

PFOS and related sulfonyl-based 

fluorochemicals, which are a subset of 

the overall PFAS category of chemicals 

and are included in 40 CFR 721.9582, 

were used in a variety of products, 

which can be divided into three main 

use categories: surface treatments, paper 

protection, and performance chemicals 

(Ref. 12). In the past, PFAS chemicals in 

the performance chemicals category 

were used in a wide variety of 

specialized industrial, commercial, and 

consumer applications. Specific 

applications included fire fighting 

foams, mining and oil well surfactants, 

acid mist suppressants for metal plating 

and electronic etching baths, alkaline 

cleaners, floor polishes, inks, 

photographic film, denture cleaners, 

shampoos, chemical intermediates, 

coating additives, carpet spot cleaners, 

and as an insecticide in bait stations for 

ants (Ref. 12). In 2000, the domestic 

production volume of the PFAS 

chemicals containing eight carbons (C8) 

for the performance chemicals use 

category was estimated to be 

approximately 1.5 million pounds (Ref. 

13). 

The 3M Company discontinued 

manufacture of some specific PFAS and 

related chemicals as of 2002. The 

Agency is aware that PFAS and PFASrelated chemicals have been produced 

by and/or imported from companies 

located in countries outside of the 

United States, including Italy, Belgium, 

Germany, Norway, Poland, and 

Switzerland, among others, and that 

many other companies have sold PFASrelated products (Ref. 14). The Agency 

is not aware of any uses or imports in 

the United States of the remaining PFAS 

chemicals on the Inventory. Comments 

generated by this document will enable 

EPA to determine if any remaining uses 

exist. 

D. Why is EPA Taking this Action? 

EPA believes that the manufacture or 

import for any use of the PFAS 

chemicals listed in Table 3 of the 

proposed regulatory text occurring after 

the 3M Company’s global phase-out 

dates would significantly increase the 

magnitude and duration of exposure to 

humans and the environment to these 

chemicals. Given the similarity of the 

chemicals in this proposal to the PFAS 

chemicals covered under 40 CFR 

721.9582 and the health and 

environmental concerns described in 

this unit, EPA believes that action on 

these PFAS chemicals is warranted. 

IV. Determining a Significant New Use 

Section 5(a)(2) of TSCA requires that 

EPA’s determination that a use of a 

chemical substance is a significant new 

use must be made after consideration of 

all relevant factors including: 

• The projected volume of 

manufacturing and processing of a 

chemical substance. 

• The extent to which a use changes 

the type or form of exposure of human 

beings or the environment to a chemical 

substance. 

• The extent to which a use increases 

the magnitude and duration of exposure 

of human beings or the environment to 

a chemical substance. 

• The reasonably anticipated manner 

and methods of manufacturing, 

processing, distribution in commerce, 

and disposal of a chemical substance. 

EPA construes the statute to allow 

consideration of any other relevant 

factors, in addition to those enumerated 

in section 5(a)(2)(A) through (D). 

To determine what would constitute a 

significant new use of the PFAS 

chemicals listed in Table 3 of the 

proposed regulatory text, EPA 

considered relevant information about 

the toxicity, exposure, and 

environmental effects of the substances 

as well as the four factors listed in 

section 5(a)(2) of TSCA. 

As described in Unit III., EPA has 

concerns regarding the reproductive and 

subchronic toxicity, persistence, and 

bioaccumulative potential of the 

chemical substances that are included 

in this proposed SNUR. Any use of 

these PFAS chemicals would continue 

to add to the reservoir of PFASA in the 

environment, resulting in additional 

human/animal exposure. 

Furthermore, the specific 

perfluoroalkylsulfonyl fluoride (PASF) 

precursors required to manufacture the 

PFAS chemicals included in this 

proposal are no longer being 

manufactured and 3M Company, the 

principal U.S. manufacturer of PFAS 

chemicals, has committed to using 

perfluorobutane sulfonate (PFBS) (a four 

carbon (C4) based PFAS). The Agency is 

also not aware of any uses or imports in 

the United States of the PFAS chemicals 

included in this proposal. 

Available information indicates that 

there is no ongoing manufacture, 

import, or use of these PFAS chemicals 

in the United States. Therefore, any 

manufacture, import, or use of these 

chemicals, apart from the excepted uses, 

if determined to be ongoing based on 

comments received on this proposed 

rule or other information, would be 

considered a significant new use. 

Considering EPA’s concerns about the 

toxicity and bioaccumulation potential 

of the chemicals, EPA believes that 

individuals and the environment could 

suffer adverse effects from their use. 

Since indications are that 

manufacturing and importing have 

ceased, with the possible exception of 

the four excepted uses, EPA believes 

that any new manufacture, import, or 

use of these chemicals would 

significantly increase the production 

volume and the magnitude and duration 

of exposure of human beings and the 

environment to these chemical 

substances. Consequently, EPA wants 

the opportunity to evaluate and control, 

if appropriate, exposures associated 

with those activities. 

Based on these considerations, EPA is 

pursuing the following objectives with 

regard to the use of the chemicals listed 

in Table 3 of the proposed regulatory 

text: 

• EPA wants to ensure that it would 

receive notice of any person’s intent to 

manufacture or import the listed 

chemicals for any designated new use 

before that activity begins. 

• EPA wants to ensure that it would 

have the opportunity to review and 

evaluate data submitted in a SNUN 

before the notice submitter begins 

manufacturing or importing the 

chemicals for any designated new use. 


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• The required notice will provide 

EPA the opportunity to evaluate 

intended significant new uses and 

associated activities before they occur 

and, if necessary, to prohibit or limit 

those activities. 

V. Test Data and Other Information 

EPA recognizes that section 5 of 

TSCA does not require the development 

of any particular test data before 

submission of a SNUN. Persons are 

required only to submit test data in their 

possession or control and to describe 

any other data known to or reasonably 

ascertainable by them (15 U.S.C. 

2604(d); 40 CFR 721.25). 

SNUN submitters should be aware 

that EPA will be better able to evaluate 

SNUNs that provide detailed 

information on: 

• Human exposure and 

environmental releases that may result 

from the significant new use of the 

chemical substance. 

• Potential benefits of the chemical 

substance. 

• Information on hazards and risks 

posed by the chemical substance 

relative to hazards and risks posed by 

potential substitutes. 

Submitters should consider including 

with a SNUN any other available studies 

on the chemical substances or studies 

on analogous substances that may 

demonstrate that the significant new 

uses being reported are unlikely to 

present an unreasonable risk. 

In view of the potential risks posed by 

these chemicals, potential SNUN 

submitters should include data that 

would permit a reasoned evaluation of 

risks posed by these chemicals. EPA 

encourages persons to consult with the 

Agency before submitting a SNUN for 

these substances. As part of this 

optional pre-notice consultation, EPA 

would discuss specific data it believes 

would be useful in evaluating a 

significant new use. A SNUN submitted 

without sufficient data to reasonably 

evaluate risks posed by a significant 

new use of one of the listed chemicals 

may increase the likelihood that EPA 

will take action under TSCA section 5(e) 

to prohibit or limit activities associated 

with these chemicals. 

VI. SNUN Submissions 

SNUNs should be mailed to the 

Environmental Protection Agency, 

OPPT Document Control Office 

(7407M), 1200 Pennsylvania Ave., NW., 

Washington, DC 20460–0001. 

Information must be submitted in the 

form and manner set forth in EPA Form 

No. 7710–25. This form is available 

from the Environmental Assistance 

Division (7408M), OPPT, Environmental 

Protection Agency, 1200 Pennsylvania 

Ave., NW., Washington, DC 20460–0001 

(see 40 CFR 721.25(a) and 

720.40(a)(2)(i)). 

VII. Alternatives 

Before proposing this SNUR, EPA 

considered promulgating a TSCA 

section 8(a) reporting rule for the listed 

chemicals. Under such a rule, EPA 

could generally require any person to 

report information to the Agency when 

they intend to manufacture, import, or 

process a listed chemical. However, in 

the case of these particular substances, 

the use of TSCA section 8(a) rather than 

SNUR authority would have several 

drawbacks. First, EPA would not be able 

to take immediate follow-up regulatory 

action under TSCA sections 5(e) or 5(f) 

to prohibit or limit the activity before it 

begins. In addition, EPA may not 

receive important information from 

small businesses, because such firms 

generally are exempt from TSCA section 

8(a) reporting requirements. In view of 

the level of health and environmental 

concerns about the chemicals listed in 

Table 3 of the proposed regulatory text, 

EPA believes that a TSCA section 8(a) 

rule for these substances would not 

meet EPA’s regulatory objectives. 

VIII. Applicability of Proposed Rule to 

Uses Occurring Before Effective Date of 

the Final Rule 

As discussed in the Federal Register 

of April 24, 1990 (55 FR 17376), EPA 

believes that the intent of TSCA section 

5(a)(1)(B) is best served by designating 

a use as a ‘‘significant new use’’ as of 

the proposal date of the SNUR, rather 

than as of the effective date of the final 

rule. If uses begun after publication of 

the proposed SNUR were considered to 

be ongoing rather than new, it would be 

difficult for EPA to establish notification 

requirements, because any person could 

defeat the SNUR by initiating the 

proposed significant new use before the 

proposed rule became final. 

Any person who begins commercial 

manufacture or import for any use of 

any of the chemical substances listed in 

Table 3 of the proposed regulatory text 

after publication of this proposed SNUR 

must stop such activity before the 

effective date of the final rule. All 

persons will have to meet all SNUR 

notice requirements and wait until the 

end of the notice review period, 

including all extensions, before 

engaging in any activities designated as 

significant new uses. If, however, 

persons who begin commercial 

manufacture or import of any of the 

chemical substances listed in Table 3 of 

the proposed regulatory text between 

the proposal and the effective date of 

the final SNUR meet the conditions of 

advance compliance as codified at 40 

CFR 721.45(h), those persons would be 

considered to have met the 

requirements of the final SNUR for 

those activities. 

IX. Issue for Comment 

EPA is especially interested in 

comments on whether there is any 

current manufacture or import of any of 

the chemicals listed in Table 3 of the 

proposed regulatory text, including for 

the uses that would be excepted as 

proposed in accordance with 40 CFR 

721.9582(a)(2)(iii). The Agency is not 

aware of any uses or imports in the 

United States of the remaining PFAS 

chemicals on the Inventory. Comments 

generated by this document will enable 

EPA to determine if any remaining uses 

exist, and therefore the need for the 

proposed, or other, exemptions, based 

on manufacture or import for an 

ongoing use. 

X. Economic Analysis 

EPA has evaluated the potential costs 

of establishing SNUR reporting 

requirements for potential 

manufacturers, including importers, of 

the chemical substances who would be 

subject to the final rule. While there is 

no precise way to calculate the total 

annual cost of compliance with the final 

rule, EPA estimates that the reporting 

cost for submitting a SNUN is $7,267, 

including a $2,500 user fee (Ref. 16). 

EPA believes that there will be few, if 

any, SNUNs submitted. EPA’s complete 

economic analysis is available in the 

public docket for this proposed rule 

(Ref. 16). 

Under section 12(b) of TSCA, 

exporters must notify EPA if they export 

or intend to export a chemical substance 

or mixture for which, among other 

things, a rule has been proposed or 

promulgated under TSCA section 5. 

Notice must be provided for the first 

export or intended export to a particular 

country in a calendar year. In an 

economic analysis of an amendment to 

the rules implementing TSCA section 

12(b), EPA estimated that the one-time 

cost of preparing and submitting an 

export notification was $62.60 in 1992, 

or $93.02 when inflated to 2003 dollars 

by a factor of approximately 1.5, from 

the Employment Cost Index for White 

Collar Occupations. The total costs of 

export notification will vary by 

chemical, depending on the number of 

required notifications (i.e., the number 

of countries to which the chemical is 

exported). EPA is unable to make any 

estimate of the likely number of export 

notifications for chemicals covered in 

this SNUR (Ref. 16). 


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12316 Federal Register / Vol. 71, No. 47 / Friday, March 10, 2006 / Proposed Rules 

XI. References 

The public docket for this action, 

EPA–HQ–OPPT–2005–0015, currently 

includes the following documents: 

1. USEPA. ‘‘Perfluorooctyl Sulfonates; 

Proposed Significant New Use Rule.’’ 65 

FR 62319, October 11, 2000. 

2. USEPA. ‘‘Perfluoroalkyl Sulfonates; 

Significant New Use Rule, Final Rule.’’

67 FR 11008, March 11, 2002. 

3. USEPA. ‘‘Perfluoroalkyl Sulfonates; 

Proposed Significant New Use Rule, 

Supplemental proposed rule.’’ 67 FR 

11014, March 11, 2002. 

4. USEPA. ‘‘Perfluoroalkyl Sulfonates; 

Significant New Use Rule, Final Rule.’’

67 FR 72854, December 9, 2002. 

5. 3M Company. Technical Data 

Bulletin: Environmental, Health, Safety, 

and Regulatory (EHSR) Profile of 

Perfluorobutane Sulfonate (PFBS), July 

2002. 

6. 3M Company. Sulfonated 

Perfluorochemicals in the Environment: 

Sources, Dispersion, Fate, and Effects. 

St. Paul, Minnesota, March 1, 2000. 

7. 3M Company. The Science of 

Organic Fluorochemistry. St. Paul, 

Minnesota, February 5, 1999. 

8. 3M Company. Perfluorooctane 

Sulfonate: Current Summary of Human 

Sera, Health and Toxicology Data. St. 

Paul, Minnesota, January 21, 1999. 

9. Kudo, Naomi, et.al. ‘‘Comparison of 

the Elimination Between Perfluorinated 

Fatty Acids with Different Carbon Chain 

Lengths in Rats.’’ Chemico-Biological 

Interactions. Volume 134(2), 2001, pp. 

203–216. 

10. Goeke-Flora, Carol M. and 

Nicholas V. Reo. ‘‘Influence of Carbon 

Chain Length on the Hepatic Effects of 

Perfluorinated Fatty Acids, A19 F- and 31P-NMR Investigation.’’ Chemical 

Research in Toxicology, 9(4), 1996, pp. 

689–695. 

11. Dixon, David A. ‘‘Fluorochemical 

Decomposition Processes,’’ Theory, 

Modeling, and Simulation, William R. 

Wiley Environmental Molecular 

Sciences Laboratory, Pacific Northwest 

National Laboratory, Richland 

Washington, April 4, 2001. 

12. 3M Company. Fluorochemical 

Use, Distribution, and Release 

Overview. St. Paul, Minnesota, May 26, 

1999. 

13. Weppner, William A., 3M 

Company. Phase-Out Plan for POSFBased Products, St. Paul, Minnesota, 

July 7, 2000. 

14. Organization for Economic 

Cooperation and Development (OECD), 

Environment Directorate. Results of 

Survey on Production and Use of PFOS, 

PFAS and PFOA-Related Substances 

and Products/Mixtures Containing these 

Substances. ENV/JM/MONO(2005)1. 

January 13, 2005, pp. 33–45. 

15. Organization for Economic 

Cooperation and Development (OECD), 

Environment Directorate. ‘‘Hazard 

Assessment of Perfluorooctane 

Sulfonate (PFOS) and its Salts,’’ ENV/ 

JM/RD(2002)17/FINAL, November, 21, 

2002. 

16. USEPA. ‘‘Economic Analysis of 

the Proposed Significant New Use Rule 

for 183 Perfluoroalkyl Sulfonates.’’

Washington, DC: U.S. EPA/OPPT/EETD/ 

EPAB, November 3, 2005. 

XII. Statutory and Executive Order 

Reviews 

A. Executive Order 12866: Regulatory 

Planning and Review 

Under Executive Order 12866, 

entitled Regulatory Planning and 

Review (58 FR 51735, October 4, 1993), 

the Office of Management and Budget 

(OMB) has determined that this 

proposed SNUR is not a ‘‘significant 

regulatory action’’ because this rule 

does not meet the criteria in section 3(f) 

of the Executive Order. 

B. Paperwork Reduction Act 

According to the Paperwork 

Reduction Act (PRA), 44 U.S.C. 3501 et 

seq., an Agency may not conduct or 

sponsor, and a person is not required to 

respond to a collection of information 

that requires OMB approval under the 

PRA, unless it has been approved by 

OMB and displays a currently valid 

OMB control number. The OMB control 

numbers for EPA’s regulations in title 40 

of the CFR, after appearing in the 

Federal Register, are listed in 40 CFR 

part 9, and included on the related 

collection instrument or form, if 

applicable. 

The information collection 

requirements related to this action have 

already been approved by OMB 

pursuant to the PRA under OMB control 

number 2070–0038 (EPA ICR No. 1188). 

This action does not impose any burden 

requiring additional OMB approval. The 

burden for submitting a SNUN is 

estimated to average 107 hours per 

submission. This burden estimate 

includes the time needed to review 

instructions, search existing data 

sources, gather and maintain the data 

needed, and complete, review, and 

submit the required SNUN. 

Send any comments about the 

accuracy of the burden estimate, and 

any suggested methods for minimizing 

respondent burden, including through 

the use of automated collection 

techniques, to the Director, Collection 

Strategies Division, Office of 

Environmental Information (2822T), 

Environmental Protection Agency, 1200 

Pennsylvania Ave., NW., Washington, 

DC 20460–0001. Please remember to 

include the OMB control number in any 

correspondence, but do not submit any 

completed forms to this address. 

C. Regulatory Flexibility Act 

Pursuant to section 605(b) of the 

Regulatory Flexibility Act (RFA) (5 

U.S.C. 601 et seq.), the Agency hereby 

certifies that promulgation of this SNUR 

would not have a significant adverse 

economic impact on a substantial 

number of small entities. The rationale 

supporting this conclusion is as follows. 

A SNUR applies to any person 

(including small or large entities) who 

intends to engage in any activity 

described in the rule as a ‘‘significant 

new use.’’ By definition of the word 

‘‘new,’’ and based on all information 

currently available to EPA, it appears 

that no small or large entities presently 

engage in such activity. Because a SNUR 

requires only that any person who 

intends to engage in such activity in the 

future must first notify EPA by 

submitting a SNUN, no economic 

impact would even occur until someone 

decides to engage in those activities. 

Although some small entities may 

decide to conduct such activities in the 

future, EPA cannot presently determine 

how many, if any, there may be. 

However, EPA’s experience to date is 

that, in response to the promulgation of 

over 1,000 SNURs, the Agency receives 

on average only 10 SNUNs per year. Of 

those SNUNs submitted, none appear to 

be from small entities in response to any 

SNUR. In addition, the estimated 

reporting cost for submission of a SNUN 

(see Unit X.), are minimal regardless of 

the size of the firm. Therefore, EPA 

believes that the potential economic 

impact of complying with this SNUR is 

not expected to be significant nor 

adversely impact a substantial number 

of small entities. In a SNUR that 

published on June 2, 1997 (62 FR 29684) 

(FRL–5597–1), the Agency presented its 

general determination that proposed 

and final SNURs are not expected to 

have a significant economic impact on 

a substantial number of small entities, 

which was provided to the Chief 

Counsel for Advocacy of the Small 

Business Administration. 

D. Unfunded Mandates Reform Act 

Based on EPA’s experience with 

proposing and finalizing SNURs, State, 

local, and Tribal governments have not 

been impacted by these rulemakings, 

and EPA does not have any reason to 

believe that any State, local, or Tribal 

government would be impacted by this 

rulemaking. As such, EPA has 

determined that this regulatory action 

would not impose any enforceable duty, 


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Federal Register / Vol. 71, No. 47 / Friday, March 10, 2006 / Proposed Rules 12317 

contain any unfunded mandate, or 

otherwise have any affect on small 

governments subject to the requirements 

of sections 202, 203, 204, or 205 of the 

Unfunded Mandates Reform Act of 1995 

(UMRA) (Public Law 104–4). 

E. Executive Order 13132: Federalism 

This action would not have a 

substantial direct effect on States, on the 

relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government, as specified in 

Executive Order 13132, entitled 

Federalism (64 FR 43255, August 10, 

1999). 

F. Executive Order 13175: Consultation 

and Coordination with Indian Tribal 

Governments 

This proposed rule would not have 

Tribal implications because it is not 

expected to have substantial direct 

effects on Indian Tribes. This proposed 

rule would not significantly or uniquely 

affect the communities of Indian Tribal 

governments, nor would it involve or 

impose any requirements that affect 

Indian Tribes. Accordingly, the 

requirements of Executive Order 13175, 

entitled Consultation and Coordination 

with Indian Tribal Governments (65 FR 

67249, November 6, 2000), do not apply 

to this proposed rule. 

G. Executive Order 13045: Protection of 

Children from Environmental Health 

Risks and Safety Risks 

This action is not subject to Executive 

Order 13045, entitled Protection of 

Children from Environmental Health 

Risks and Safety Risks (62 FR 19885, 

April 23, 1997), because this is not an 

economically significant regulatory 

action as defined by Executive Order 

12866, and this action does not address 

environmental health or safety risks 

disproportionately affecting children. 

H. Executive Order 13211: Actions that 

Significantly Affect Energy Supply, 

Distribution, or Use 

This proposed 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), because this action is not 

expected to affect energy supply, 

distribution, or use. 

I. National Technology Transfer 

Advancement Act 

In addition, since this action does not 

involve any technical standards, 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), does not 

apply to this action. 

J. Executive Order 12898: Federal 

Actions to Address Environmental 

Justice in Minority Populations and 

Low-Income Populations 

This action does not entail special 

considerations of environmental justice 

related issues as delineated by 

Executive Order 12898, entitled Federal 

Actions to Address Environmental 

Justice in Minority Populations and 

Low-Income Populations (59 FR 7629, 

February 16, 1994). 

K. Executive Order 12988: Civil Justice 

Reform 

In issuing this proposed rule, EPA has 

taken the necessary steps to eliminate 

drafting errors and ambiguity, minimize 

potential litigation, and provide a clear 

legal standard for affected conduct, as 

required by section 3 of Executive Order 

12988, entitled Civil Justice Reform (61 

FR 4729, February 7, 1996). 

List of Subjects in 40 CFR Part 721 

Environmental protection, Chemicals, 

Hazardous substances, Reporting and 

recordkeeping requirements. 

Dated: February 28, 2006. 

Charles M. Auer, 

Director, Office of Pollution Prevention and 

Toxics. 

Therefore, it is proposed that 40 CFR 

part 721 be amended as follows: 

PART 721—[AMENDED] 

1. The authority citation for part 721 

would continue to read as follows: 

Authority: 15 U.S.C. 2604, 2607, and 

2625(c). 

2. Section 721.9582 is amended as 

follows: 

a. By revising the text of paragraph 

(a)(1). 

b. By adding a Table 3 to paragraph 

(a)(1). 

c. By revising paragraphs (a)(2) and 

(a)(3). 

§ 721.9582 Certain perfluoroalkyl 

sulfonates. 

(a) Chemical substances and 

significant new uses subject to reporting. 

(1) The chemical substances listed in 

Table 1, Table 2, and Table 3 of this 

section are subject to reporting under 

this section for the significant new uses 

described in paragraph (a)(2) of this 

section. 

* * * * * 

TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006 

CAS No. CAS Ninth Collective Index Name C No. 

179005-06-2 Sulfonamides, C4-8-alkane, perfluoro, N-[3-(dimethyloxidoamino)propyl], potassium 

salts 

C4-C8 

148240-81-7 Fatty acids, C18-unsatd., trimers, 2-[methyl[(undecafluoropentyl)sulfonyl]amino]ethyl 

esters 

C5 

95590-48-0 2-Propenoic acid, 2-methyl-, 3-(trimethoxysilyl)propyl ester, polymer with 

ethenylbenzene, 2-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethyl 2-propenoate 

and 2-hydroxyethyl 2-propenoate 

C8 

73772-34-6 1-Hexanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,6- 

tridecafluoro-N-[2-[2-(2- hydroxyethoxy)ethoxy]ethyl]- 

C6 

73772-33-5 1-Hexanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,6- 

tridecafluoro-, monoacetate 

C6 

73275-59-9 2-Propenoic acid, 2-[[(heptadecafluorooctyl)sulfonyl]propylamino]ethyl ester, polymer 

with a-(2-methyl-1-oxo-2-propenyl)-w-butoxypoly[oxy(methyl-1,2-ethanediyl)] 

C8 


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TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006—Continued 

CAS No. CAS Ninth Collective Index Name C No. 

73038-33-2 2-Propenoic acid, 2-[[(heptadecafluorooctyl)sulfonyl]propylamino]ethyl ester, polymer 

with methyloxirane polymer with oxirane mono(2-methyl-2-propenoate) 

C8 

73019-28-0 2-Propenoic acid, 2-[[(heptadecafluorooctyl)sulfonyl]propylamino]ethyl ester, polymer 

with a-(2-methyl-1-oxo-2-propenyl)-w-methoxypoly(oxy-1,2-ethanediyl) (9CI) 

C8 

73019-20-2 1,3-Benzenedicarboxamide, N3-[2-[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl]- 

N1-[2-[[(heptadecafluorooctyl)sulfonyl]propylamino]ethyl]-4-methylC8 

73019-19-9 Benzamide, 4-[[4-[[[2- 

[[(heptadecafluorooctyl)sulfonyl]propylamino]ethyl]amino]carbonyl]phenyl]methyl]-NoctadecylC8 

73018-93-6 2-Propenoic acid, 2-methyl-, 2-ethylhexyl ester, polymer with 2- 

[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl 2-propenoate 

C8 

72785-08-1 1-Propanesulfonic acid, 3-[[3- 

(dimethylamino)propyl][(heptadecafluorooctyl)sulfonyl]amino]- 

C8 

71463-81-5 Phosphonic acid, [3-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]propyl]-, diethyl ester C7 

71463-80-4 Phosphonic acid, [3-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]propyl]-, diethyl ester C8 

71463-79-1 Phosphonic acid, [3-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]propyl]- C7 

71463-78-0 Phosphonic acid, [3-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]propyl]- C8 

71463-74-6 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, compd. with 

piperidine (1:1) 

C8 

70900-40-2 2-Propenoic acid, 2-methyl-, 2-[[[[5-[[[4- 

[[(heptadecafluorooctyl)sulfonyl]methylamino]butoxy]carbonyl]amino]-2- 

methylphenyl]amino]carbonyl]oxy]propyl ester, telomer with butyl 2-propenoate, 2- 

[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl 2-propenoate, 

C4-C8 

70248-52-1 1-Propanaminium, N,N,N-trimethyl-3-[[(tridecafluorohexyl)sulfonyl]amino]-, sulfate 

(2:1) 

C6 

70225-26-2 1-Propanaminium, 3-[[(heptadecafluorooctyl)sulfonyl]amino]-N,N,N- trimethyl-, sulfate 

(2:1) 

C8 

70225-24-0 1-Propanaminium, N,N,N-trimethyl-3-[[(undecafluoropentyl)sulfonyl]amino]-, sulfate 

(2:1) 

C5 

70225-20-6 1-Propanaminium, N,N,N-trimethyl-3-[[(pentadecafluoroheptyl)sulfonyl]amino]-, sulfate 

(2:1) 

C7 

70225-17-1 1-Pentanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-, compd. with 2,2’- 

iminobis[ethanol] (1:1) 

C5 

70225-16-0 1-Hexanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-, compd. with 2,2’- 

iminobis[ethanol] (1:1) 

C6 

70225-15-9 1-Heptanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-, compd. with 

2,2’-iminobis[ethanol] (1:1) 

C7 

68958-60-1 Poly(oxy-1,2-ethanediyl), alpha-[2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl]- 

omega-methoxyC7 

68957-63-1 Glycine, N-ethyl-N-[(pentadecafluoroheptyl)sulfonyl]- C7 

68957-62-0 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro- C7 

68957-61-9 1-Hexanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,6- 

tridecafluoro-, monohydrochloride 

C6 

68957-60-8 1-Pentanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,5- 

undecafluoro-, monohydrochloride 

C5 

68957-58-4 1-Propanaminium, N,N,N-trimethyl-3-[[(tridecafluorohexyl)sulfonyl]amino]-, iodide C6 

68957-57-3 1-Propanaminium, N,N,N-trimethyl-3-[[(undecafluoropentyl)sulfonyl]amino]-, iodide C5 


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TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006—Continued 

CAS No. CAS Ninth Collective Index Name C No. 

68957-55-1 1-Propanaminium, N,N,N-trimethyl-3-[[(undecafluoropentyl)sulfonyl]amino]-, chloride C5 

68957-54-0 Glycine, N-ethyl-N-[(pentadecafluoroheptyl)sulfonyl]-, ethyl ester C7 

68957-53-9 Glycine, N-ethyl-N-[(tridecafluorohexyl)sulfonyl]-, ethyl ester C6 

68957-32-4 Glycine, N-ethyl-N-[(tridecafluorohexyl)sulfonyl]- C6 

68957-31-3 Glycine, N-ethyl-N-[(undecafluoropentyl)sulfonyl]- C5 

68891-99-6 Chromium, diaquatetrachloro[mu-[N-ethyl-N-[(undecafluoropentyl)sulfonyl]glycinatokO:kO’]]-mu-hydroxybis(2-propanol)diC5 

68891-98-5 Chromium, diaquatetrachloro[mu-[N-ethyl-N-[(tridecafluorohexyl)sulfonyl]glycinatokO:kO’]]-mu-hydroxybis(2-propanol)diC6 

68891-97-4 Chromium, diaquatetrachloro[mu-[N-ethyl-N- 

[(pentadecafluoroheptyl)sulfonyl]glycinato-kO:kO’]]-mu-hydroxybis(2-propanol)- 

C7 

68877-32-7 2-Propenoic acid, 2-methyl-, 2-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethyl ester, 

polymer with 2-[ethyl[(nonafluorobutyl)sulfonyl]amino]ethyl 2-methyl-2-propenoate, 

2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl 2-methyl-2-propenoate, 2-[ 

C4-C8 

68815-72-5 Benzoic acid, 2,3,4,5-tetrachloro-6-[[[3- 

[[(tridecafluorohexyl)sulfonyl]oxy]phenyl]amino]carbonyl]-, monopotassium salt 

C6 

68797-76-2 2-Propenoic acid, 2-methyl-, 2-ethylhexyl ester, polymer with 2- 

[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl 2-propenoate, 2- 

[methyl[(nonafluorobutyl)sulfonyl]amino]ethyl 2-propenoate, 2- 

[methyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl 2-pr 

C4-C8 

68608-13-9 Sulfonamides, C4-8-alkane, perfluoro, N-ethyl-N-(hydroxyethyl), reaction products 

with TDI 

C4-C8 

68568-77-4 2-Propenoic acid, 2-methyl-, 2-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethyl ester, 

polymer with 2-chloro-1,3-butadiene, 2-[ethyl[(nonafluorobutyl)sulfonyl]amino]ethyl 

2-methyl-2-propenoate, 2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl 2 

C4-C8 

68555-81-7 1-Propanaminium, N,N,N-trimethyl-3-[[(pentadecafluoroheptyl)sulfonyl]amino]-, chloride C7 

68555-79-3 Glycine, N-ethyl-N-[(undecafluoropentyl)sulfonyl]-, ethyl ester C5 

68555-78-2 1-Pentanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,5- 

undecafluoroC5 

68555-76-0 1-Heptanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2-hydroxyethyl)-N-methylC7 

68555-75-9 1-Hexanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-(2-hydroxyethyl)-NmethylC6 

68555-74-8 1-Pentanesulfonamide, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-(2-hydroxyethyl)-NmethylC5 

68555-73-7 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2-hydroxyethyl)- C7 

68555-72-6 1-Pentanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-(2-hydroxyethyl)- C5 

68555-71-5 Glycine, N-ethyl-N-[(pentadecafluoroheptyl)sulfonyl]-, sodium salt C7 

68555-70-4 Glycine, N-ethyl-N-[(tridecafluorohexyl)sulfonyl]-, sodium salt C6 

68555-69-1 Glycine, N-ethyl-N-[(undecafluoropentyl)sulfonyl]-, sodium salt C5 

68541-02-6 Benzoic acid, 2,3,4,5-tetrachloro-6-[[[3- 

[[(undecafluoropentyl)sulfonyl]oxy]phenyl]amino]carbonyl]-, monopotassium salt 

C5 

68541-01-5 Benzoic acid, 2,3,4,5-tetrachloro-6-[[[3- 

[[(pentadecafluoroheptyl)sulfonyl]oxy]phenyl]amino]carbonyl]-, monopotassium salt 

C7 


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TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006—Continued 

CAS No. CAS Ninth Collective Index Name C No. 

68391-09-3 Sulfonic acids, C6-12-alkane, perfluoro, potassium salts C6-C12 

68318-36-5 1-Propanaminium, 3-[(carboxymethyl)[(heptadecafluorooctyl)sulfonyl]amino]-N,N,Ntrimethyl-, inner salt C8 

68318-34-3 Cyclohexanesulfonyl fluoride, decafluoro(trifluoromethyl)- C7 

68310-75-8 1-Propanaminium, 3-[[(heptadecafluorooctyl)sulfonyl]amino]-N,N,N-trimethyl-, iodide, 

ammonium salt 

C8 

68310-17-8 Poly[oxy(methyl-1,2-ethanediyl)], alpha-[2- 

[ethyl[(undecafluoropentyl)sulfonyl]amino]ethyl]-omega-hydroxyC5 

68310-02-1 1-Heptanesulfonamide, N-butyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2-hydroxyethyl)- C7 

68299-39-8 2-Propenoic acid, 2-methyl-, 4-[[(heptadecafluorooctyl)sulfonyl]methylamino]butyl 

ester, telomer with butyl 2-propenoate, 2- 

[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl 2-propenoate, 4- 

[methyl[(nonafluorobutyl)sulfonyl] amino]butyl 2-methyl-2-p 

C4-C8 

68299-29-6 Benzenesulfonic acid, ar-[[[(pentadecafluoroheptyl)sulfonyl]amino]methyl]-, monosodium salt C7 

68299-21-8 Benzenesulfonic acid, [[[(tridecafluorohexyl)sulfonyl]amino]methyl]-, monosodium salt C6 

68299-20-7 Benzenesulfonic acid, [[[(undecafluoropentyl)sulfonyl]amino]methyl]-, monosodium 

salt 

C5 

68298-89-5 1-Heptanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(4- 

hydroxybutyl)-N-methylC7 

68298-81-7 Poly(oxy-1,2-ethanediyl), alpha-[2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl]- 

omega-hydroxyC7 

68298-80-6 Poly(oxy-1,2-ethanediyl), alpha-[2-[ethyl[(undecafluoropentyl)sulfonyl]amino]ethyl]- 

omega-hydroxyC5 

68298-78-2 2-Propenoic acid, 2-methyl-, 2-[[[[5-[[[2- 

[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethoxy]carbonyl]amino]-2- 

methylphenyl]amino]carbonyl]oxy]propyl ester, telomer with butyl 2-propenoate, 2- 

[[[[5-[[[2-[ethyl[(nonafluorobutyl) sulfonyl]amino]ethoxy] 

C4-C8 

68298-60-2 2-Propenoic acid, 2-[butyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl ester C7 

68298-13-5 1-Pentanesulfonamide, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-methyl- C5 

68298-11-3 1-Propanaminium, 3-[[(heptadecafluorooctyl)sulfonyl](3-sulfopropyl)amino]-N-(2-hydroxyethyl)-N,N-dimethyl-, inner salt C8 

68298-10-2 1-Heptanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N- 

(phenylmethyl)- 

C7 

68298-09-9 1-Hexanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-(phenylmethyl)- C6 

68298-08-8 1-Pentanesulfonamide, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-(phenylmethyl)- C5 

68298-06-6 2-Propenoic acid, 2-[ethyl[(undecafluoropentyl)sulfonyl]amino]ethyl ester C5 

68259-39-2 Poly[oxy(methyl-1,2-ethanediyl)], alpha-[2- 

[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl]-omega-hydroxyC7 

68259-38-1 Poly[oxy(methyl-1,2-ethanediyl)], alpha-[2- 

[ethyl[(tridecafluorohexyl)sulfonyl]amino]ethyl]-omega-hydroxyC6 

68259-15-4 1-Hexanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-methyl- C6 

68259-14-3 1-Heptanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-methyl- C7 

68259-12-1 1-Nonanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-nonadecafluoro- C9 

68259-09-6 1-Pentanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-, ammonium salt C5 


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Federal Register / Vol. 71, No. 47 / Friday, March 10, 2006 / Proposed Rules 12321 

TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006—Continued 

CAS No. CAS Ninth Collective Index Name C No. 

68259-08-5 1-Hexanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-, ammonium salt C6 

68259-07-4 1-Heptanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-, ammonium salt C7 

68259-06-3 1-Nonanesulfonyl fluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-nonadecafluoro- C9 

68239-75-8 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-[3- 

(trimethoxysilyl)propyl]- 

C7 

68239-74-7 1-Hexanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-(4-hydroxybutyl)-NmethylC6 

68239-73-6 1-Octanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(4- 

hydroxybutyl)-N-methylC8 

68239-72-5 1-Pentanesulfonamide, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-(4-hydroxybutyl)-NmethylC5 

68228-00-2 2-Propenoic acid, ethyl ester, polymer with 4- 

[[(heptadecafluorooctyl)sulfonyl]methylamino]butyl 2-propenoate, 4- 

[methyl[(nonafluorobutyl)sulfonyl]amino]butyl 2-propenoate, alpha-(2-methyl-1-oxo2-propenyl)-omega-hydroxypoly(oxy-1,4-butanediyl), a-(2-methyl 

C4-C8 

68227-99-6 2-Propenoic acid, 4-[methyl[(undecafluoropentyl)sulfonyl]amino]butyl ester C5 

68227-98-5 2-Propenoic acid, 4-[methyl[(tridecafluorohexyl)sulfonyl]amino]butyl ester C6 

68227-97-4 2-Propenoic acid, 4-[methyl[(pentadecafluoroheptyl)sulfonyl]amino]butyl ester C7 

68227-96-3 2-Propenoic acid, butyl ester, telomer with 2- 

[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl 2-propenoate, 2- 

[methyl[(nonafluorobutyl)sulfonyl]amino]ethyl 2-propenoate, alpha-(2-methyl-1-oxo2-propenyl)-omega-hydroxypoly(oxy-1,4-butanediyl), alpha-(2-methyl 

C4-C8 

68227-94-1 2-Propenoic acid, 2-[[(heptadecafluorooctyl)sulfonyl]methylamino]ethyl ester, polymer 

with 2-[methyl[( nonafluorobutyl)sulfonyl]amino]ethyl 2-propenoate, alpha-(2-methyl1-oxo-2-propenyl)-omega-hydroxypoly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2- 

propenyl)-omega 

C4-C8 

68227-87-2 2-Propenoic acid, 2-methyl-, 2-[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethyl ester, 

telomer with 2-[ethyl[( nonafluorobutyl)sulfonyl]amino]ethyl 2-methyl-2-propenoate, 

2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl 2-methyl-2-propenoate, 2- 

C4-C8 

68156-07-0 Cyclohexanesulfonic acid, decafluoro(trifluoromethyl)-, potassium salt C7 cyclic 

68156-06-9 Cyclohexanesulfonyl fluoride, decafluoro(pentafluoroethyl)- C8 cyclic 

68156-00-3 Cyclohexanesulfonyl fluoride, nonafluorobis(trifluoromethyl)- C8 cyclic 

68084-62-8 2-Propenoic acid, 2-[methyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl ester C7 

68081-83-4 Carbamic acid, (4-methyl-1,3-phenylene)bis-, bis[2-[ethyl[(perfluoro- C4-8- 

alkyl)sulfonyl]amino]ethyl] ester 

C4-C8 

67969-65-7 1-Hexanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-[2- 

(phosphonooxy)ethyl]- 

C6 

67940-02-7 1-Heptanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7- 

pentadecafluoro-, monohydrochloride 

C7 

67939-98-4 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-[2- 

(phosphonooxy)ethyl]-, diammonium salt 

C7 

67939-97-3 1-Heptanesulfonamide, N,N’-[phosphinicobis(oxy-2,1-ethanediyl)]bis[N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-, ammonium salt C7 

67939-96-2 2-Propenoic acid, 2-methyl-, 2-[methyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl 

ester 

C7 

67939-94-0 1-Heptanesulfonamide, N,N’,N’’-[phosphinylidynetris(oxy-2,1-ethanediyl)]tris[N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoroC7 


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12322 Federal Register / Vol. 71, No. 47 / Friday, March 10, 2006 / Proposed Rules 

TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006—Continued 

CAS No. CAS Ninth Collective Index Name C No. 

67939-93-9 1-Heptanesulfonamide, N,N’-[phosphinicobis(oxy-2,1-ethanediyl)]bis[N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoroC7 

67939-92-8 1-Hexanesulfonamide, N,N’-[phosphinicobis(oxy-2,1-ethanediyl)]bis[N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoroC6 

67939-90-6 1-Pentanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-[2- 

(phosphonooxy)ethyl]- 

C5 

67939-88-2 1-Octanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8- 

heptadecafluoro-, monohydrochloride 

C8 

67939-87-1 1-Pentanesulfonamide, N,N’-[phosphinicobis(oxy-2,1-ethanediyl)]bis[N-ethyl1,1,2,2,3,3,4,4,5,5,5-undecafluoroC5 

67939-61-1 2-Propenoic acid, 2-methyl-, 4-[methyl[(tridecafluorohexyl)sulfonyl]amino]butyl ester C6 

67939-42-8 1-Octanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-[3- 

(trichlorosilyl)propyl]- 

C8 

67939-37-1 2-Propenoic acid, 2-methyl-, 2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl 

ester, polymer with octadecyl 2-propenoate and 2-propenoic acid 

C7 

67939-36-0 2-Propenoic acid, 2-methyl-, 2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl ester C7 

67923-61-9 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-[2- 

(phosphonooxy)ethyl]- 

C7 

67906-74-5 2-Propenoic acid, 2-methyl-, 2-[ethyl[(undecafluoropentyl)sulfonyl]amino]ethyl ester, 

polymer with octadecyl 2-propenoate and 2-propenoic acid 

C5 

67906-73-4 2-Propenoic acid, 2-methyl-, 2-[ethyl[(undecafluoropentyl)sulfonyl]amino]ethyl ester C5 

67906-71-2 2-Propenoic acid, 2-methyl-, 2-[ethyl[(tridecafluorohexyl)sulfonyl]amino]ethyl ester, 

polymer with octadecyl 2-propenoate and 2-propenoic acid 

C6 

67906-70-1 2-Propenoic acid, 2-methyl-, 2-[ethyl[(tridecafluorohexyl)sulfonyl]amino]ethyl ester C6 

67906-41-6 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-2- 

propenylC7 

67906-40-5 2-Propenoic acid, 2-methyl-, 4-[methyl[(undecafluoropentyl)sulfonyl]amino]butyl ester C5 

67906-38-1 2-Propenoic acid, 2-methyl-, 4-[methyl[(pentadecafluoroheptyl)sulfonyl]amino]butyl 

ester 

C7 

67584-62-7 Glycine, N-ethyl-N-[(pentadecafluoroheptyl)sulfonyl]-, potassium salt C7 

67584-61-6 2-Propenoic acid, 2-methyl-, 2-[methyl[(tridecafluorohexyl)sulfonyl]amino]ethyl ester C6 

67584-60-5 2-Propenoic acid, 2-methyl-, 2-[methyl[(undecafluoropentyl)sulfonyl]amino]ethyl ester C5 

67584-58-1 1-Propanaminium, N,N,N-trimethyl-3-[[(pentadecafluoroheptyl)sulfonyl]amino]-, iodide C7 

67584-57-0 2-Propenoic acid, 2-[methyl[(tridecafluorohexyl)sulfonyl]amino]ethyl ester C6 

67584-56-9 2-Propenoic acid, 2-[methyl[(undecafluoropentyl)sulfonyl]amino]ethyl ester C5 

67584-54-7 1-Heptanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7- 

pentadecafluoroC7 

67584-53-6 Glycine, N-ethyl-N-[(tridecafluorohexyl)sulfonyl]-, potassium salt C6 

67584-52-5 Glycine, N-ethyl-N-[(undecafluoropentyl)sulfonyl]-, potassium salt C5 

67584-50-3 1-Heptanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-[3- 

(trichlorosilyl)propyl]- 

C7 

67584-49-0 1-Heptanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-2-propenyl- C7 

67584-48-9 1-Hexanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-2-propenyl- C6 


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TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006—Continued 

CAS No. CAS Ninth Collective Index Name C No. 

66008-70-6 2-Propenoic acid, 2-[methyl[(2,2,3,3,4,4,5,5,6,6,7,7,7- 

tridecafluoroheptyl)sulfonyl]amino]ethyl ester 

C7 

66008-69- 3 2-Propenoic acid, 2-[[(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9- 

heptadecafluorononyl)sulfonyl]methylamino]ethyl ester 

C9 

66008-68-2 2-Propenoic acid, 2-[[(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11- 

eicosafluoroundecyl)sulfonyl]methylamino]ethyl ester 

C11 

61577-14-8 2-Propenoic acid, 2-methyl-, 4-[[(heptadecafluorooctyl)sulfonyl]methylamino]butyl 

ester 

C8 

60270-55-5 1-Heptanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-, potassium salt C7 

59071-10-2 2-Propenoic acid, 2-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]ethyl ester C7 

58920-31-3 2-Propenoic acid, 4-[[(heptadecafluorooctyl)sulfonyl]methylamino]butyl ester C8 

56773-42-3 Ethanaminium, N,N,N-triethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8- 

heptadecafluoro-1-octanesulfonic acid (1:1) 

C8 

56372-23-7 Poly(oxy-1,2-ethanediyl), alpha-[2-[ethyl[(tridecafluorohexyl)sulfonyl]amino]ethyl]- 

omega-hydroxyC6 

55910-10-6 Glycine, N-[(heptadecafluorooctyl)sulfonyl]-N-propyl-, potassium salt C8 

52550-45-5 Poly(oxy-1,2-ethanediyl), alpha-[2-[[(heptadecafluorooctyl)sulfonyl]propylamino]ethyl]- 

omega-hydroxyC8 

52166-82-2 1-Propanaminium, N,N,N-trimethyl-3-[[(tridecafluorohexyl)sulfonyl]amino]-, chloride C6 

52032-20-9 Poly(oxy-1,2-ethanediyl), alpha- 

[[[(heptadecafluorooctyl)sulfonyl]methylamino]carbonyl]-omega-butoxyC8 

51032-47-4 Benzenesulfonic acid, [[[(heptadecafluorooctyl)sulfonyl]amino]methyl]-, monosodium 

salt 

C8 

50598-29-3 1-Octanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N- 

(phenylmethyl)- 

C8 

50598-28-2 1-Hexanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,6- 

tridecafluoroC6 

38850-60-1 1-Propanesulfonic acid, 3-[[3- 

(dimethylamino)propyl][(tridecafluorohexyl)sulfonyl]amino]- 

C6 

38850-52-1 1-Propanaminium, 3-[(carboxymethyl)[(tridecafluorohexyl)sulfonyl]amino]-N,N,Ntrimethyl-, inner salt C6 

37338-48-0 Poly[oxy(methyl-1,2-ethanediyl)], alpha-[2- 

[ethyl[(heptadecafluorooctyl)sulfonyl]amino]ethyl]-omega-hydroxyC8 

34455-03-3 1-Hexanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-(2-hydroxyethyl)- C6 

24924-36-5 1-Octanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-2- 

propenylC8 

21055-88-9 Carbamic acid, (4-methyl-1,3-phenylene)bis-, bis[2-[ethyl[(heptadecafluorooctyl) 

sulfonyl]amino]ethyl] ester 

C8 

13417-01-1 1-Octanesulfonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8- 

heptadecafluoroC8 

3872-25-1 1-Pentanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-, potassium salt C5 

3871-99-6 1-Hexanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-, potassium salt C6 

3871-50-9 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulfonyl]-, sodium salt C8 

3820-83-5 1-Octanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-[2- 

(phosphonooxy)ethyl]- 

C8 


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12324 Federal Register / Vol. 71, No. 47 / Friday, March 10, 2006 / Proposed Rules 

TABLE 3—PFAS CHEMICALS SUBJECT TO REPORTING ON OR AFTER APRIL 10, 2006—Continued 

CAS No. CAS Ninth Collective Index Name C No. 

3107-18-4 Cyclohexanesulfonic acid, undecafluoro-, potassium salt C6 cyclic 

2991-52-8 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulfonyl]-, ammonium salt C8 

2991-50-6 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulfonyl]- C8 

2965-52-8 1-Octanesulfonamide, N,N’-[phosphinicobis(oxy-2,1-ethanediyl)]bis[N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoroC8 

2706-91-4 1-Pentanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro- C5 

2263-09-4 1-Octanesulfonamide, N-butyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2- 

hydroxyethyl)- 

C8 

1893-52-3 2-Propenoic acid, 2-[ethyl[(tridecafluorohexyl)sulfonyl]amino]ethyl ester C6 

1869-77-8 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulfonyl]-, ethyl ester C8 

423-86-9 1-Octanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-2-propenyl C8 

375-92-8 1-Heptanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro- C7 

375-81-5 1-Pentanesulfonyl fluoride, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro- C5 

355-46-4 1-Hexanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro- C6 

355-03-3 Cyclohexanesulfonyl fluoride, undecafluoro- C6 cyclic 

335-97-7 1-Pentanesulfonamide, 1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-2-propenyl- C5 

335-77-3 1-Decanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heneicosafluoro- C10 

335-71-7 1-Heptanesulfonyl fluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro- C7 

335-24-0 Cyclohexanesulfonic acid, 1,2,2,3,3,4,5,5,6,6-decafluoro-4- (pentafluoroethyl)-, potassium salt C8 cyclic 

Note: The extremely long 9CI names for the identified polymers have been truncated to save space in the Code of Federal Regulations (CFR). 

Each complete 9CI name is available at the EPA website in the TSCA Substance Registry System (SRS) at http://www.epa.gov/srs. 

(2) The significant new uses are: 

(i) Any manufacture or import for any 

use of any chemical substance listed in 

Table 1 of paragraph (a)(1) of this 

section. 

(ii) Any manufacture or import for 

any use of any chemical substance listed 

in Table 2 of paragraph (a)(1) of this 

section, except as noted in paragraph 

(a)(3) of this section. 

(iii) Any manufacture or import for 

any use of any chemical substance listed 

in Table 3 of paragraph (a)(1) of this 

section, except as noted in paragraph 

(a)(3) of this section. 

(3) Manufacture or import of any 

chemical substance listed in Table 2 and 

Table 3 of paragraph (a)(1) of this 

section for the following specific uses 

shall not be considered as a significant 

new use subject to reporting under this 

section: 

(i) Use as an anti-erosion additive in 

fire-resistant phosphate ester aviation 

hydraulic fluids. 

(ii) Use as a component of a 

photoresist substance, including a photo 

acid generator or surfactant, or as a 

component of an anti-reflective coating, 

used in a photomicrolithography 

process to produce semiconductors or 

similar components of electronic or 

other miniaturized devices. 

(iii) Use in coating for surface tension, 

static discharge, and adhesion control 

for analog and digital imaging films, 

papers, and printing plates, or as a 

surfactant in mixtures used to process 

imaging films. 

(iv) Use as an intermediate only to 

produce other chemical substances to be 

used solely for the uses listed in 

paragraph (a)(3)(i), (ii), or (iii) of this 

section. 

* * * * * 

[FR Doc. E6–3444 Filed 3–9–06; 8:45 am] 

BILLING CODE 6560–50–S 

DEPARTMENT OF HOMELAND 

SECURITY 

Federal Emergency Management 

Agency 

44 CFR Part 67 

[Docket No. FEMA–D–7640] 

Proposed Flood Elevation 

Determinations 

AGENCY: Federal Emergency 

Management Agency (FEMA), 

Department of Homeland Security. 

ACTION: Proposed rule. 

SUMMARY: Technical information or 

comments are requested on the 

proposed Base (1% annual chance) 

Flood Elevations (BFEs) and proposed 

BFE modifications for the communities 

listed below. The BFEs are the basis for 

the floodplain management measures 

that the community is required either to 

adopt or to show evidence of being 

already in effect in order to qualify or 

remain qualified for participation in the 


dsatterwhite on PROD1PC61 with PROPOSALS