DOE proposed to amend its existing regulations governing compliance with NEPA, particularly its categorical exclusions.

EPA entered into a proposed administrative settlement under CERCLA that requires 275 de minimis settling parties to pay $17,027,998 in U.S. response costs incurred at the Operating Industries, Inc., Superfund site in Monterey Park, California.

EPA updated outer continental shelf air regulations for California.

EPA finalized amendments to Method 301, Field Validation of Pollutant Measurement Methods From Various Waste Media.

EPA proposed to allow refiners and laboratories to use an alternative test method for olefin content in gasoline.

EPA delayed the effective dates for the final rules titled "National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters" and "Standards of Performance for New Sources and Emission Guidelines for Existing Sources: Commercial and Industrial Solid Waste Incineration Units" until judicial review and Agency reconsideration are completed.

NMFS announces that the annual harvest guideline for the 
commercial lobster fishery in the Northwestern Hawaiian Islands (NWHI) 
for calendar year 2011 is established at zero lobsters.

FWS removed the Maguire daisy from the list of endangered and threatened plants under the ESA.

SIP Proposal: California (VOC emissions for the Antelope Valley air quality management district and the Placer County, Santa Barbara, and Ventura County air pollution control districts; see above for direct final rule)

EPA granted a petition submitted by Owosso Graphic Arts Inc. in Owosso, Michigan, to exclude from the list of hazardous waste up to 244 cubic yards of wastewater treatment sludge per year.