FWS designated approximately 14,069 acres in the Mojave Desert in San Bernardino County, California, as critical habitat for Lane Mountain milk-vetch.

FWS reissued final rulemaking that identifies the northern Rocky Mountain population of gray wolf as a distinct population segment and removes most gray wolves from the list of endangered and threatened wildlife under the ESA.

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.

SIP Approval: Mississippi (incorporation of nitrogen oxide (NOx) as a precursor to ozone).

SIP Approval: Massachusetts (delegation of authority for PSD program)