Document ID: EPA-HQ-ORD-2021-0562-0002
Agency: epa
Document Type: Notice
Title: Draft IRIS Toxicological Review of Perfluorohexanesulfonic Acid and Related Salts
Posted Date: 2023-07-24T04:00Z

[Federal Register Volume 88, Number 140 (Monday, July 24, 2023)]
[Notices]
[Page 47496]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-15613]

[[Page 47496]]

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ENVIRONMENTAL PROTECTION AGENCY

[EPA-HQ-ORD-2021-0562; FRL-11038-01-ORD]

Availability of the Draft IRIS Toxicological Review of 
Perfluorohexane Sulfonate (PFHxS) and Related Salts

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of public comment period.

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SUMMARY: The Environmental Protection Agency (EPA) is announcing a 60-
day public comment period associated with release of the draft IRIS 
Toxicological Review of Perfluorohexane Sulfonate (PFHxS) and Related 
Salts. The draft assessment was prepared by the Center for Public 
Health and Environmental Assessment (CPHEA) within EPA's Office of 
Research and Development (ORD). EPA is releasing this draft IRIS 
assessment for public comment in advance of a contractor-led peer 
review. Public comments received will be provided to the external peer 
reviewers. ERG, a contractor to EPA, will convene a public meeting to 
discuss the draft report during Step 4 of the IRIS Process. The 
external peer reviewers will consider public comments submitted in 
response to this notice and those provided at the public meeting when 
reviewing this assessment. EPA will consider all comments received when 
revising the assessment post-peer review. This draft assessment is not 
final as described in EPA's information quality guidelines, and it does 
not represent, and should not be construed to represent Agency policy 
or views.

DATES: The 60-day public comment period begins July 24, 2023 and ends 
September 22, 2023. Comments must be received on or before September 
22, 2023.

ADDRESSES: The draft IRIS Toxicological Review of Perfluorohexane 
Sulfonate (PFHxS) and Related Salts will be available via the internet 
on the IRIS website at https://www.epa.gov/iris/iris-recent-additions 
and in the public docket at http://www.regulations.gov, Docket ID No. 
EPA-HQ-ORD-2021-0562.

FOR FURTHER INFORMATION CONTACT: For information on the public comment 
period, contact the ORD Docket at the EPA Headquarters Docket Center; 
telephone: 202-566-1752; facsimile: 202-566-9744; or email: 
[email protected].
    For technical information on the draft IRIS Toxicological Review of 
Perfluorohexane Sulfonate (PFHxS) and Related Salts, contact the IRIS 
Hotline; email: [email protected]. The IRIS Program will provide 
updates through the IRIS website (https://www.epa.gov/iris) and via 
EPA's IRIS listserv. To register for the IRIS listserv, visit the IRIS 
website (https://www.epa.gov/iris) or visit https://www.epa.gov/iris/forms/staying-connected-integrated-risk-information-system#connect.
    For questions about the peer review, please contact: Laurie Waite, 
ERG, by email at [email protected] (subject line: EPA PFAS assessments 
peer review); or by phone: (781) 674-7362.

SUPPLEMENTARY INFORMATION: 

How To Submit Technical Comments to the Docket at https://www.regulations.gov

    Submit your comments, identified by Docket ID No. EPA-HQ-ORD-2021-
0562 for the Perfluorohexane Sulfonate (PFHxS) and Related Salts IRIS 
Assessment, by one of the following methods:
     www.regulations.gov: Follow the on-line instructions for 
submitting comments.
     Email: [email protected].
     Fax: 202-566-9744.
     Mail: U.S. Environmental Protection Agency, EPA Docket 
Center (ORD Docket), Mail Code: 28221T, 1200 Pennsylvania Avenue NW, 
Washington, DC 20460. The phone number is 202-566-1752.
    For information on visiting the EPA Docket Center Public Reading 
Room, visit https://www.epa.gov/dockets. The telephone number for the 
Public Reading Room is 202-566-1744. The public can submit comments via 
www.Regulations.gov or email.
    Instructions: Direct your comments to docket number EPA-HQ-ORD-
2021-0562 for Perfluorohexane Sulfonate (PFHxS) and Related Salts IRIS 
Assessment.
    Please ensure that your comments are submitted within the specified 
comment period. Comments received after the closing date will be marked 
``late,'' and may only be considered if time permits. It is EPA's 
policy to include all comments it receives in the public docket without 
change and to make the comments available online at 
www.regulations.gov, including any personal information provided, 
unless a comment includes information claimed to be Confidential 
Business Information (CBI) or other information for which disclosure is 
restricted by statute. Do not submit information through 
www.regulations.gov or email that you consider to be CBI or otherwise 
protected. The www.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 email comment directly to EPA without going through 
www.regulations.gov, your email address will be automatically captured 
and included as part of the comment that is placed in the public docket 
and made available on the internet. If you submit an electronic 
comment, EPA recommends that you include your name and other contact 
information in the body of your comment and with any disk or CD-ROM you 
submit. If EPA cannot read your comment due to technical difficulties 
and cannot contact you for clarification, EPA may not be able to 
consider your comment. Electronic files should avoid the use of special 
characters, any form of encryption, and be free of any defects or 
viruses. For additional information about EPA's public docket visit the 
EPA Docket Center homepage at www.epa.gov/epahome/dockets.htm.
    Docket: Documents in the docket are listed in the 
www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other materials, 
such as copyrighted material, are publicly available only in hard copy. 
Publicly available docket materials are available either electronically 
in www.regulations.gov or in hard copy at the ORD Docket in the EPA 
Headquarters Docket Center.

Wayne Cascio,
Director, Center for Public Health & Environmental Assessment.
[FR Doc. 2023-15613 Filed 7-21-23; 8:45 am]
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