California Infrastructure State Implementation Plan (SIP)
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The Federal Clean Air Act (CAA) requires each state to adopt and submit to the U.S. EPA, a plan that provides for implementation, maintenance, and enforcement of the National Ambient Air Quality Standards (NAAQS). This plan, generally referred to as an Infrastructure SIP, describes the infrastructure (authorities, resources, and programs) California has in place to implement, maintain, and enforce the NAAQS. The Infrastructure SIP revision is administrative in nature and does not contain any proposals for emission control measures.