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This page last reviewed June 5, 2009
Geographical areas in the State that exceed the federal
air quality standards are called non-attainment areas. There are 15 non-attainment areas for the federal ozone standard
and two non-attainment areas for the PM2.5 standard. The Ozone SIP and PM2.5 SIP must be adopted and
sent to the U.S. Environmental Protection Agency by June 2007 and April 2008, respectively. The SIP
must show how each area will attain the federal standards. To do this, the SIP will identify the amount
of pollution emissions that must be reduced in each area to meet the standard and the emission controls needed
to reduce the necessary emissions. 2009 Status Report and Revision to the California 2007 State Implementation Plan On April 23, the Air Resources Board adopted a staff proposal to consider a revision to the SIP reflecting implementation of the 2007 State Strategy since it was adopted. The U.S. Environmental Protection Agency (U.S. EPA) requested this revision to aid U.S. EPA’s approval of the SIP. The proposed revision accounts for emission reductions from the regulations adopted in 2007 and 2008, clarifies ARB’s legal commitments in light of U.S. EPA’s approval criteria, and clarifies the discussion of the long-term strategy for identifying future technologies to achieve the last increment of reductions. The proposed revision does not change the emission reductions of oxides of nitrogen, reactive organic gases, oxides of sulfur and direct PM2.5 that the Board committed to achieve by specific years when it adopted the 2007 State Strategy. The proposed revision also includes a commitment for emission reductions in the Sacramento area, since its attainment plan will be considered by the Board at its March 2009 hearing when it considers approval of the SIP for the Sacramento area. The reductions in Sacramento from the statewide measures in the 2007 State Strategy had not been quantified at the time the 2007 State Strategy was adopted and so are not reflected in the 2007 State Strategy. For clarity, staff is now proposing to revise the State Strategy to reflect this commitment. ARB staff has prepared a document entitled, Status Report on the State Strategy for California’s 2007 State Implementation Plan and Proposed Revision to the State Implementation Plan Reflecting Implementation of the 2007 State Strategy (Status Report and Proposed SIP Revisions)
Statewide Strategy Approval Documents On September 27, 2007,
ARB adopted its State Strategy for the 2007 SIP. The State
Strategy consists of the April 26, 2007 draft strategy and several
changes that were made as ARB staff proceeded through the public
comment and Board adoption process. The April 2007 draft,
proposed changes, and adopted documents are listed below. Transmittal Letter to U.S. EPA of the State Strategy for the California State Implementation Plan (November 16, 2007) Board Resolution Adopting 2007 State Strategy - #07-28 (September 27, 2007)
Executive Order S-07-002 for the Approval of the State Strategy for California's State Implementation Plan (SIP) for the Federal 8-hour Ozone and PM2.5 Standards Transmittal Letter to U.S. EPA for the Revised Pesticide Element of the 1994 Ventura County Nonattainment Ozone Plan Resolution for the Revised Pesticide Element of the 1994 Ventura County Nonattainment Ozone PlanExecutive Order S-07-003 for the Revised Pesticide Element of the 1994 Ventura County Nonattainment Ozone Plan
September 2007 Proposal for Revised State Strategy Continuation of Public Meeting on Proposed State Strategy - September 27-28, 2007 April 26 State Strategy Documents Draft Statewide Air Quality Plan One of the Air Resources Board’s responsibilities is to propose the State and federal strategy for the SIP to reach the federal standards. The SIP is a comprehensive strategy designed to attain federal air quality standards as quickly as possible through a combination of technologically feasible and cost-effective measures. It outlines ARB staff's assessment of how far adopted regulations will take us towards attainment of federal standards, what new actions could be taken, how the timing of new technology and incentive funds comes into play, and what are the earliest feasible timeframes for meeting standards is likely to be in each region.
Technical Modifications to April 26, 2007 Revised Draft of Proposed State Strategy
ARB staff will be holding public meetings to discuss the development of plans for meeting the new federal standards, and to specifically receive public comment on the preliminary State and federal control measures.
California State Implementation Plan
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