EPA proposed final amendments to the NESHAPs for existing stationary spark ignition reciprocating internal combustion engines; see above for direct final rule.

NOAA-Fisheries codified the listing of the southern resident killer whale distinct population segment as an endangered species under the ESA.

FWS established regulations for seasons, harvest limits, methods, and means related to the taking of fish and shellfish for subsistence uses in Alaska during the 2011-2012 and 2012-2013 regulatory years.

FWS designated approximately 202 acres in Onslow and Pender Counties, North Carolina, as critical habitat for the golden sedge. 

OSM approved an amendment to Montana's regulatory program under SMCRA concerning letters of credit issued by banks.

OSM approved an amendment to Louisiana's regulatory program and abandoned mine land reclamation plan under SMCRA covering a wide range of provisions.

OSM approved an amendment to Kentucky's regulatory program under SMCRA pertaining to the disposal of coal mine waste.

EPA issued a final rule requiring monitoring and reporting of greenhouse gas (GHG) emissions from additional sources of fluorinated GHGs.

EPA extended and clarified its stay of the final rule entitled "Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NSR): Reconsideration of Inclusion of Fugitive Emissions."

EPA determined that hydrofluoroolefin-1234yf is an acceptable substitute for chlorofluorocarbon-12, an ozone-depleting substance, in motor vehicle air conditioning for new passenger cars and light-duty trucks.