EPA proposed to approve Maine's NPDES program to include the permitting of all discharges within the Indian territories of the Penobscot Nation and the Passamaquoddy Tribe.

EPA Region 10 reproposed effluent limits for mercury, copper, total aromatic hydrocarbons, total aqueous hydrocarbons, silver, and whole effluent toxicity under the NPDES general permit for oil and gas exploration, development, and production facilities in Cook Inlet, Alaska.

The U.S. Army Corps of Engineers proposed to authorize Natural Resources Conservation Service-approved categorical exclusions for recurring conservation, restoration, and survey-related activities in waters of the United States.

EPA and the U.S. Army Corps of Engineers seek public comment on proposed guidance to identify waters protected by the FWPCA consistent with the U.S. Supreme Court's SWANNC and Rapanos decisions.

NOAA-Fisheries announced a 90-day finding on a petition to revise critical habitat for the endangered leatherback sea turtle off the northeast ecological corridor of Puerto Rico; the agency found that revision may be warranted.

SIP Proposal: Virginia (definition of a cogeneration unit)

EPA proposed NESHAPs from coal- and oil-fired electric utility steam-generating units and revised NSPS for fossil fuel-fired units.

NOAA-Fisheries established ocean salmon management measures for fisheries off the coasts of California, Oregon, and Washington through May 1, 2012.

OSM approved an amendment to Montana's regulatory program under SMCRA regarding bond release responsibility periods for water management facilities and other support facilities.