EPA approved Florida's plan under the CAA for implementing and enforcing the emissions guidelines applicable to existing large municipal waste combustors.

SIP Approval: California (limited approval of NOx revisions for the Santa Barbara County air pollution control district)

EPA finalized rulemaking that narrows thresholds for Title V permitting programs under the Greenhouse Gas Tailoring Rule.

SIP Approval: California (VOC emissions for the Placer County and Ventura County air pollution control districts)

EPA established a federal implementation plan for Arizona, Arkansas, Florida, Idaho, Kansas, Oregon, and Wyoming because their SIPs fail to apply PSD requirements to sources of GHG emissions.

SIP Approval: California (VOCs for the Mojave Desert air quality management district)

EPA determined that Arizona, Arkansas, Florida, Idaho, Kansas, Oregon, and Wyoming have failed to submit revisions to their EPA-approved SIPs to apply PSD requirements to GHG-emitting sources.

SIP Approval: California (volatile organic compound (VOC) emissions from consumer products)

EPA deferred until August 31, 2011, the reporting deadline for year 2010 data elements that are inputs to emission equations under the Mandatory Greenhouse Gas Reporting Rule.

(new source review permitting requirements and exemptions)