Availability of the Draft IRIS Toxicological Review of PFBA and Related Compound Ammonium PFBA

SUMMARY: The Environmental Protection Agency (EPA) is announcing a 60-
day public comment period associated with release of the IRIS 
Toxicological Review of Perfluorobutanoic acid (PFBA) and Related 
Compound Ammonium Perfluorobutanoic Acid. The draft document 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 
contract-led peer review. Public comments received will be provided to 
the external peer reviewers. Eastern Research Group, Inc. (ERG), a 
contractor to EPA, will convene a public meeting to discuss the draft 
report with the public during Step 4 of the IRIS Process. The external 
peer reviewers will consider public comments submitted in response to 
this notice and provided at the public meeting when reviewing this 
document. EPA will consider all comments received when revising the 
document 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 August 23, 2021 and ends 
October 22, 2021. Comments must be received on or before October 22, 
2021.

ADDRESSES: The IRIS Toxicological Review of Perfluorobutanoic acid 
(PFBA) and Related Compound Ammonium Perfluorobutanoic Acid 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-2020-0675.

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: 
Docket_ORD@epa.gov.
    For technical information on the IRIS Toxicological Review of 
Perfluorobutanoic acid (PFBA) and Related Compound Ammonium 
Perfluorobutanoic Acid, contact Ms. Vicki Soto, CPHEA; telephone: 202-
564-3077; or email: soto.vicki@epa.gov. 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.

* Read the full Notice at https://www.govinfo.gov/content/pkg/FR-2021-08-23/html/2021-18029.htm

* See also pdf version http://fluoridealert.org/wp-content/uploads/epa-iris.draft_.pfba_.for-comment.8-23-21.pdf