On October 7, 2021, the Office of Management and Budget’s (OMB) Office of Information and Regulatory Affairs (OIRA) completed its review of a proposed rule on “Regulation of Persistent, Bioaccumulative, and Toxic Chemicals Under TSCA Section 6(h); Phenol, Isopropylated Phosphate (3:1); Further Compliance Date Extension.” The U.S. Environmental Protection Agency (EPA) announced on September 3, 2021, an extension of certain compliance dates for Phenol, Isopropylated Phosphate (3:1) (PIP (3:1)) to March 8, 2022, “to address the hardships inadvertently created by the original applicable compliance dates in the January 2021 final rule to ensure that supply chains are not disrupted for key consumer and commercial goods.” The proposed rule reviewed by OIRA is expected to propose further extensions to certain article-related compliance dates. More information on EPA’s September 3, 2021, announcement is available in our memorandum, “EPA Plans New Rulemaking for PBTs, Extends Compliance Dates for PIP (3:1) Rule.”