EPA entered into a proposed administrative settlement agreement for remedial investigation addendum/focused feasibility study under CERCLA associated with the Smeltertown site near Salida, Colorado. 

EPA issued a rule under TSCA to address the unreasonable risk of injury to health presented by chrysotile asbestos based on the risks posed by certain conditions of use. 

EPA proposed to require manufacturers of 16 chemical substances to submit copies and lists of certain unpublished health and safety studies to help inform EPA’s responsibilities pursuant to TSCA. 

FWS withdrew the September 7, 2021, proposed rule to list the pyramid pigtoe as a threatened species under the ESA. 

FWS proposed to list the pygmy three-toed sloth as a threatened species under the ESA, with a rule issued under §4(d) of the Act. 

FWS initiated five-year status reviews for 100 species in American Sāmoa, California, Hawaii, Idaho, Oregon, and Washington under the ESA. 

EPA proposed to revise regulations that allow for the open burning and detonation (OB/OD) of waste explosives by reducing OB/OD of waste explosives and increasing control of air emissions. 

United States v. Ameren Corp., No. 1:24-cv-00047 (E.D. Mo. Mar. 12, 2024). Under a proposed consent decree, settling CERCLA defendants must pay $6,074,739 and certain settling federal agencies must pay a further $600,798 for costs the United States incurred responding to releases of hazardous substances at the Missouri Electric Works Superfund site in Cape Girardeau, Missouri. 

FWS proposed to list the bushy whitlow-wort as an endangered species under the ESA, and to designate approximately 41.96 acres in Jim Hogg County, Texas, as critical habitat for the species. 

FWS proposed to remove the North Park phacelia from the Federal List of Endangered and Threatened Plants due to recovery.