EPA proposed to update a portion of the outer continental shelf air regulations for California.

EPA seeks public comment on proposed federal implementation plan supplements to the Interstate Transport Rule for fine PM and ozone.

EPA repealed the grandfather provision for fine particulate matter (PM) under the PSD permit program.

EPA denied in part petitions to reconsider NESHAPs and new source performance standards (NSPS) for the Portland cement industry and denied requests for a stay.

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.

SIP Proposal: Maryland (VOC emissions; see above for direct final rule)

This action approves a modification to Alaska's approved 
Municipal Solid Waste Landfill (MSWLF) permit program. The approved 
modification allows the State to issue Research, Development, and 
Demonstration (RD&D) permits to owners and operators of MSWLFs in 
accordance with its State law. On March 22, 2004, EPA issued final 
regulations allowing RD&D permits to be issued to certain MSWLFs by 
approved States. On September 7, 2010, the State of Alaska submitted an 
application to EPA Region 10 seeking Federal approval of its RD&D 
requirements. After thorough review, EPA Region 10 has determined that 
Alaska's RD&D permit requirements are adequate through this direct 
final action.

EPA Region 10 approved a modification to Alaska's municipal solid waste landfill program concerning research, development, and demonstration permit requirements.

SIP Withdrawal: Wisconsin (1997 eight-hour ozone NAAQS for the Milwaukee-Racine and Sheboygan areas)

SIP Approval: Tennessee (maintenance plan for the Nashville area)