FWS initiated five-year status reviews under the ESA for five northeastern species. 

EPA approved revisions to Louisiana's SDWA §1422 Underground Injection Control Program to include Class VI injection well primary enforcement responsibility. 

FWS initiated five-year status reviews under the ESA for three plant and 13 animal species. 

EPA updated the portion of the outer continental shelf air regulations for which Maryland is the designated corresponding onshore area. 

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. 

The U.S. Sentencing Commission seeks comment on proposed amendments to the sentencing guidelines, policy statements, and commentary.

NMFS prohibited the retention and possession of oceanic whitetip sharks in U.S. waters of the Atlantic Ocean, including the Gulf of Mexico and Caribbean Sea, and hammerhead sharks in U.S. waters of the Caribbean Sea. 

SIP Proposal: Arizona (revisions concerning issuance of permits for stationary sources). 

SIP Proposal: Kansas (disapproval of revisions concerning regional haze). 

NMFS designated approximately 2,384.67 square kilometers of aquatic habitat located off the coasts of southeastern Florida, Puerto Rico, Navassa, and the U.S. Virgin Islands as critical habitat for the threatened Nassau grouper pursuant to §4 of the ESA.