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1994 Sacramento Regional
Clean Air Plan (State Implementation Plan)



Clean Air Plan (State Implementation Plan) Documents

The 1994 Sacramento Regional Clean Air Plan ( also called the State Implementation Plan or SIP) was developed cooperatively with all the districts in the Sacramento Region (El Dorado APCD, Feather River AQMD, Placer County APCD, Sacramento Metropolitan AQMD, and Yolo-Solano AQMD). The Clean Air Plan was adopted in 1994 in compliance with the 1990 Amendments to the Federal Clean Air Act. At that time, our region could not show that we would meet the federal one-hour ozone standard by 1999. In exchange for moving the deadline to 2005, the region accepted a designation of “severe nonattainment” for the federal one-hour ozone standard, with additional emission requirements on stationary sources. The Clean air Plan can be viewed or downloaded from this link: 1994 Sacramento Regional Plan (Adobe Acrobat 4.4 Mb)

As a "severe nonattainment" area , the Sacramento Region is required to submit a rate-of-progress milestone evaluation per Section 182(g) of the Federal Clean Air Act. Below are links to the Sacramento Regional 1999 Milestone Report and Technical Appendix. This report was also developed cooperatively with the above-named districts in the Sacramento Region. The 1999 Milestone Report includes a compliance demonstration that the milestone requirement has been met for the Sacramento nonattainment area.

The 2002 Milestone Report also includes a compliance demonstration that the 2002 milestone requirement has been met for the Sacramento nonattainment area. The Milestone Report was presented to the SMAQMD Board of Directors on May 22, 2003 and will be submitted to the California Air Resources Board and the U.S. Environmental Protection Agency.

Clean Air Plan Update Activities

While the region has made significant progress in reducing ozone, a problem has arisen with regard to another Federal Clean Air Act requirement. The region’s transportation plan must “conform”, or show that it does not harm the region’s chances of reaching the ozone standard. Regions with a SIP, such as ours, have a “motor vehicle emissions budget” tied to the SIP. Transportation planners must analyze the emissions anticipated from transportation plans and transportation improvement programs and ensure that they remain within the SIP’s emissions budget (this is called demonstrating conformity). If we do not update the Plan, conformity will lapse and transportation funding can be withheld from all but exempt projects. Please see the Sacramento Regional Clean Air Plan Update page for further information and background: Sacramento Region Clean Air Plan Update  


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Tuesday, 01-Jul-2008 10:20:02 GMT