California Infrastructure State Implementation Plan (SIP)

This page last reviewed March 8, 2016


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.

2015 Interstate Transport SIP


ARB Actions

The Board approved a revision of the California Infrastructure SIP on December 17, 2015. The revision describes the nature and potential impact that California emissions have on receptors in downwind states. This portion of the Infrastructure SIP is commonly referred to as the Transport SIP or the "Good Neighbor" SIP.  This proposed revision to the Infrastructure SIP describes the potential impact California emissions would have on the 0.075 ppm 8-hour ozone NAAQS, the 35 ug/m3 24-hour PM2.5 NAAQS, the 12.0 ug/m3 annual PM2.5 NAAQS, and the 75 ppb 1-hour SO2 NAAQS.

EPA Actions

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2014 California Infrastructure SIP Revision 


ARB Actions

The Board approved a revision of the Infrastructure SIP at a public hearing on January 23, 2014.  This revision covered NAAQS for ozone (1997 and 2008), fine particulate matter (PM2.5; 1997, 2006, and 2012), lead (2008), nitrogen dioxide (2010), and sulfur dioxide (2010).  

EPA Actions


 
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