The U.S. Environmental Protection Agency (EPA) announced on March 4, 2022, that EPA Administrator Michael S. Regan signed a final rule on March 3, 2022, that will amend the regulations applicable to phenol, isopropylated phosphate (3:1) (PIP (3:1)) promulgated under the Toxic Substances Control Act (TSCA). EPA states that it is extending the compliance date applicable to the prohibition on processing and distribution in commerce of certain PIP (3:1)-containing articles, and the PIP (3:1) used to make those articles, until October 31, 2024, along with the compliance date for the associated recordkeeping requirements for manufacturers, processors, and distributors of PIP (3:1)-containing articles. A pre-publication version of the final rule is available. The final rule will be effective when it is published in the Federal Register. For more information, please read the full memorandum.