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.

NOAA proposed to designate marine portions of Papahānaumokuākea Marine National Monument in the Pacific Ocean waters surrounding the Northwest Hawaiian Islands as Papahānaumokuākea National Marine Sanctuary.