Revised Draft



## Air Resources Board’s Proposed State Strategy for California’s 2007 State Implementation Plan

Release Date: April 26, 2007

This document has been prepared by the st aff of the California Air Resour ces

Board. Publication does not signify that the contents reflect the views and policies of the Air Resources Board. T he Air Resources Board will consider this document as a revision to the California State Implementation Plan at a noticed public meeting tentatively scheduled for June 21-22, 2007. 

# Air Resources Board California Environmental Protection Agency This docket only includes portions of the CARB 2007 State Strategy. The entire Strategy is available at:

http://www.arb.ca.gov/planning/sip/2007sip/2007sip.htmElectronic copies of this documen t can be found on ARB’s website at http://www.arb.ca.gov/p lanning/sip/sip.htm . Alternatively, paper copies may be obtained from the Public Information Office , Air Resources Board, 1001 I Street, Visitors and Environmental Services Center, 1 st Floor, Sacrament o, California 95814, (916) 322-2990. For individuals with sensory disabilities, this document is available in Braille, large print, audiocassette, or computer disk. Please cont act ARB’s Disability Coordinator at (916) 323-4916 by voice or through the California Relay Services at 711, to place your request for disab ility services. If you are a person with limited English and would like to request interpreter services, please contact ARB’s Bilingual Mana ger at (916) 323-7053. This document has been prepared by the st aff of the California Air Resources Board. Publication does not signify that the contents reflect the views and policies of the Air Resources Board, nor does trade names or commercial products constitute endorsement or recommendation for use. Please send written comments to: Mr. Kurt Karperos, P.E., Chief Air Quality and Transportation Planning Branch California Air Resources Board P.O. Box 2815 Sacramento, California 95812 Phone: (916) 322-0285

Fax: (916) 322-3646 For general questions, contact: Mr. Ravi Ramalingam, P.E., Manager

Transportation Strategies Section Phone: (916) 322-2085 Email: rramalin@arb.ca.gov

### Air Resources Board’s Proposed State Strategy for California’s 2007 State Implementation Plans TABLE OF CONTENTS EXECUTIVE SUMMARY ......................................................................................1 1. BACKGROUND .......................................................................................11

• General SIP Requirements • National Air Quality Standards • Health Effects of Ozone and PM2.5 • Nonattainment Areas and Air Quality Trends • Development of State Strategy • Air Pollution Transport • Other Programs 2. TECHNICAL FOUNDATION ....................................................................25

• Emissions Inventory Overview • Forecasting Future Emissions • Top Emission Sources • Setting the Emission Reduction Targets 3. ARB’S 2007 SIP STATE STRATEGY .....................................................35

• Agency Roles in SIP Measure Development • Adopted SIP Measures • ARB’s Proposed New SIP Measures • Need for Technology and Long-Term Measures • Process for Identifying Long-Term Emission Reductions • State Implementati on Plan Commitments • Commitments to Reduce Emissions • Commitment to Propose Defined New SIP Measures • Commitment to Reduce Emissions via Long-Term Strategy • Role of Funding an d Incentive Programs • Federal Actions Needed • Ozone Attainment Demonstrations • Tracking Progress • Contingency Measures Requirement4. PM2.5 ATTAINMENT IN THE SOUTH COAST .......................................72

• Nature of PM2.5 Pollution • PM2.5 Emission Trends – Steadily Getting Better • The PM2.5 Challenge • Closing the Gap with Direct PM2.5 Reductions • Analysis of South Coast Air Distric t Staff’s Proposed Additional Mobile Source Measures • How to Advance South Coast PM2.5 Attainment – Recommendations for Board Consideration 5. PROPOSED NEW SIP MEASURES -- DESCRIPTIONS ........................89 APPENDICES (Not included in this draft -- will be available by May 7, 2007.) Appendix A: Emission In ventory Output Tables Appendix B: Infrastructure SIP Appendix C: Interstate Transport SIP Appendix D: Reasonable Further Progress and Contingency Calculations Appendix E: Potential Impacts of State Strategy Proposed New Measures Appendix F: Emission Inventory SIP Appendix G: Legal Authority and Other Requirements