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EPA Action on PFAS Compounds

Background

In addition to its activities on PFOA, EPA has been investigating other related perfluorinated compounds, including perfluoroalkyl sulfonates (PFAS). Studies have found PFAS chemicals in very small amounts in the blood of the general human population as well as in wildlife. Although most of the health and environmental studies have focused primarily on PFOS and PFOA, analysis of the structure of these compounds indicates that the results of those studies may be applied to a larger category of PFAS chemicals. EPA believes that the chemical similarity between PFOS and PFAS raises the likelihood that health and environmental concerns are present for PFAS compounds.

Significant New Use Rules (SNURs)

Following the voluntary phase out of PFOS by 3M between 2000 and 2002, EPA took prompt regulatory action on March 11, 2002 and December 9, 2002 by publishing two significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) to limit any future manufacture or importation of 88 PFAS chemicals specifically included in that phase out. These SNURs allowed the continuation of a few specifically limited, highly technical uses of these chemicals for which no alternatives were available, and which were characterized by very low volume, low exposure, and low releases. Any other uses of these chemicals would require prior notice to and review by the Agency. Read more information on the first SNUR for 13 chemicals . Read more information on the second SNUR for 75 chemicals.

Subsequently, EPA identified 183 additional PFAS chemicals believed to no longer be manufactured, imported or used in the United States, with the possible exception of the same uses excluded from the earlier SNURs. However, based on comments received during the public comment period and related communications, EPA learned of an ongoing use of seven PFAS chemicals as a component of an etchant used in the plating process to produce electronic devices, and an ongoing use of a PFAS chemical as a fume/mist suppressant in metal finishing and plating baths. Consequently, those uses for those particular chemicals were excluded from the final SNUR. EPA published a Federal Register Notice on October 9, 2007, finalizing the SNUR on these additional chemicals. Read more information on the third SNUR for 183 chemicals.

Read more information on SNURs and related information in the docket:

PFOS SNURs - docket ID number EPA-HQ-OPPT-2002-0043
PFAS SNUR - docket ID number EPA-HQ-OPPT-2005-0015

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