EPA issued a stay until March 14, 2011, of the requirement for chemical manufacturing area sources to comply with the NESHAPs permit program.

EPA issued an SIP call to 13 states whose plans do not apply PSD requirements to GHG-emitting sources and established deadlines for their compliance.

OSM proposed to approve revisions to Maryland's regulatory program concerning coal combustion byproducts under SMCRA.

OSM proposed to approve revisions to New Mexico's regulatory program under SMCRA concerning ownership and control rules.

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

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

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)

SIP Approval: Alabama (removal of PSD program limitation)

EPA amended NESHAPs for gasoline distribution bulk terminals, bulk plants, and pipeline and gasoline-dispensing facilities.

EPA issued a final rule requiring GHG monitoring and reporting from facilities that conduct geologic sequestration of carbon dioxide.