SIP Proposal: California (limited approval of permitting rules for the Sacramento metropolitan air quality management district)

SIP Approvals: California (nitrogen oxide emissions for the Sacramento metropolitan air quality management district).

SIP Proposal: California (termination of backsliding fees for the Sacramento Metro one-hour ozone nonattainment area).

EPA made final amendments to certain CAA regulations pertaining to Indian tribes.

EPA granted reconsideration of certain provisions of the Mandatory Greenhouse Gas Reporting Rule promulgated on November 30, 2010.

EPA approved negative declarations and requests for EPA withdrawal of its CAA §§111(d) and 129 plan approval for HMIWI, large municipal waste combustor (LMWC), small municipal waste combustor (SMWC), and other solid waste incinerator (OSWI) units from Florida, Kentucky, North Carolina, and South Carolina.

SIP Proposal: California (PSD permit programs for the Northern Sonoma County air pollution control district and the Mendocino County air quality management district; see above for direct final rule)

EPA proposed to grant Maine the authority to implement and enforce its amended Dry Cleaner Rule in place of the federal NESHAP for perchloroethylene dry cleaning facilities; see above for direct final rule.

EPA finalized NESHAPs for Group I polymers and resins; marine tank vessel loading operations; pharmaceuticals production; and the printing and publishing industry.

EPA proposed revisions to the NESHAPs for the production of polyvinyl chloride and copolymers during periods of startup, shutdown, and malfunctions, including requirements on demonstration of initial and continuous compliance, continuous monitoring provisions, and recordkeeping and reporting.