ing the incident reporting requirements specified in 49 C.F.R. Sections 171.15 and 171.16. In addition, PHMSA will continue concurrent work on future FAQ notices and, in response to the comments received, subsequent topics may include FAQs pertaining to batteries, classification, hazard communication, hazardous substances, hazardous wastes, modal-specific requirements, or packaging. More information is available in our December 12, 2022, memorandum.EPA Proposes To Restrict The Use Of HFCs In Certain Products And Equipment Where Climate-Safe Alternatives Are Available: On December 15, 2022, EPA issued a proposed rule under the American Innovation and Manufacturing (AIM) Act to restrict the use of hydrofluorocarbons (HFC) in specific sectors or subsectors in which they are used; establish a process for submitting technology transitions petitions; establish recordkeeping and reporting requirements; and address certain other elements related to the effective implementation of the AIM Act. 87 Fed. Reg. 76738. EPA notes that the proposed restrictions on the use of HFCs would, in part, address petitions granted on October 7, 2021, and September 19, 2022. EPA also seeks advance information on certain topics that may be helpful to developing a future proposed rule including on restrictions on the use of HFCs for certain other sectors and subsectors and on a third-party auditing program to verify substances used in products. Comments are due January 30, 2023. Under the PRA, comments on the information collection provisions are best ensured of consideration if OMB receives a copy on or before January 17, 2023. EPA will hold a virtual public hearing on December 30, 2022. The date, time, and other relevant information for the virtual public hearing will be available at https://www.epa.gov/​climate-hfcs-reduction.FDAFDA Requests Comments For Threshold Of Regulation: On November 15, 2022, the U.S. Food and Drug Administration (FDA) announced a proposed collection of information related to Threshold