EPA amended a provision of the recently finalized Technology Transitions Program under the American Innovation and Manufacturing Act to allow one additional year solely for the installation of new residential and light commercial air conditioning and heat pump systems using components manufactured or imported prior to January 1, 2025.  

United States v. New Hampshire, No. 1:18-cv-00996-PB. Under a proposed modified consent decree, a settling CWA defendant that allegedly violated an NPDES permit by exceeding its discharge limits for total phosphorus and pH, which contributed to contamination, eutrophication, and the growth of toxic cyanobacteria in the Merrymeeting River must achieve compliance with the CWA and its permit by the end of 2025. 

EPA announced the availability of the document Policy Assessment for the Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur and Particulate Matter. 

EPA proposed to revise the technology-based effluent limitations guidelines and standards for the meat and poultry products point source category. 

United States v. Reading, City of, No. 04-05696 (E.D. Penn. Jan. 24, 2024). A proposed amendment to a consent decree extends the deadlines for completing remaining capital improvement projects for a settling CWA defendant that violated its NPDES permits, the CWA, and the Pennsylvania Clean Streams law by discharging pollutants into the Schuylkill River, failed to enforce the requirements of its pretreatment program for industrial users, and failed to properly operate and maintain its wastewater treatment plant and systems. 

FWS announced findings that listing the gray wolf in the western United States and in the northern Rocky Mountains as endangered or threatened species under the ESA are not warranted at this time.

NMFS listed the queen conch as a threatened species under the ESA. 

SIP Proposal: Pennsylvania (disapproval of revisions to address certain reasonably available control technology requirements for the 1997 and 2008 ozone NAAQS for the Keystone, Conemaugh and Homer City electric generating facilities). 

SIP Proposal: Tennessee (revisions to add exemptions to opacity monitoring requirements). 

EPA Region 4 reissued the NPDES general permit for existing and new sources and new dischargers in the offshore subcategory of the oil and gas extraction point source category located and discharging to the outer continental shelf of the eastern Gulf of Mexico.