Proposed Approval of Imperial County 2018 Redesignation Request and Maintenance Plan for PM10
On April 2, 2020, the U.S. Environmental Protection Agency (EPA) published a proposed rule on the Federal Register to approve the Imperial PM10 Plan as a revision of the California SIP. The Imperial PM10 Plan includes a demonstration of implementation of Best Available Control Measures (BACM) and a maintenance plan.
Final Approval of Imperial County Nonattainment Area State Implementation Plan for 2008 8-Hour Ozone National Ambient Air Quality Standards
On February 27, 2020, the U.S. Environmental Protection Agency (EPA) published a final rule on the Federal Register to approve two SIP revisions submitted by California to meet Clean Air Act requirements for the 2008 8-Hour Ozone NAAQS in the Imperial County nonattainment area. EPA is approving the “Imperial County 2017 SIP for the 2008 8-Hour Ozone Standard” and the portions of the “2018 Updates to the California SIP” that address the requirement for a Reasonable Further Progress (RFP) demonstration for Imperial County for the 2008 Ozone NAAQS.
Final Approval of Ventura County Nonattainment Area State Implementation Plan for 2008 8-Hour Ozone National Ambient Air Quality Standards
On February 27, 2020, the U.S. Environmental Protection Agency (EPA) published a final rule on the Federal Register to approve portions of two SIP revisions submitted by California to meet Clean Air Act requirements for the 2008 8-Hour Ozone NAAQS in the Ventura County nonattainment area.