### Updates to Transportation Conformity Budgets for the San Joaquin Valley 2012 PM2.5 Plan

October 20, 2014

Date to be considered: November 20, 2014This document has been reviewed by the staff of the California Air Resources Board and approved for publication. Approval does not signify that the contents necessarily reflect the views and poli cies of the Air Resources Board, nor does the mention of trade

names or c ommercial products constitute endorsement or recommendation for use.

Electronic copies of this document are available for download from the Air Resources

Board’s Internet site at: w ww.arb.ca.gov/planning/sip/sjvpm25/24hrsjvpm25.htm

. In addition, written copies may be obtained from the Public Information Office, Air Resources Board, 1001 I Street, 1 st Floor, Visitors and Environmental Services Center, Sacramento, California 95814, (9 16) 322

- 2990.

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- 4916 by voice or through the California Relay Service s at 711, to place your request for disability services. If you are a person with limited English and would like to request interpreter services, please contact ARB’s Bilingual Manager at (916) 323

- 7053.DESCRIPTION OF THE PROPOSED REVISIONS

The federal Clean Air Act (the Act) establishes planning requirements for those areas that routinely exceed the health

- based National Ambient Air Quality Standards. These nonattainment areas must develop and implement a State Implementation Plan (SIP)
th at demonstrates how they will attain the standards by specified dates. The San Joaquin Valley Air Basin was designated nonattainment for the 35 μg/m 3 24

- hour PM2.5 standard in 2009.

In December 2012, the San Joaquin Valley Air Pollution Control Distric t (District) adopted a State Implementation Plan (SIP) for the 35 μg/m 3 24

- hour PM2.5 standard (2012 PM2.5 Plan). The 2012 PM2.5 Plan was developed to meet requirements of the
Act including requirements to demonstrate reasonable further progress (RFP) tow ard attainment of the standard. The 2012 PM 2.5 Plan also contains transportation conformity budgets as required by the Act. In January 2013, the Board approved the
2012 PM2.5 Plan.

The transportation conformity budgets in the 2012 PM2.5 P lan included the benefits of incentive programs and the District employee trip reduction rule. Those same benefits were not included in the plan’s RFP demonstration because the region was able to show RFP without them. U.S. EPA has requested that the State remove the benefits of incentive programs and the employee trip reduction rule from the transportation conformity budgets so that they are consistent with the plan’s RFP demonstration. Appendix A to thi s report contains two tables . The first is an update to Table C

- 4 in the 2012 PM2.5 Plan that reflects the updated conformity budgets in 2014 and 2017 for each of the San Joaquin Valley counties . The second table provides details for how the budgets were calculated

.

PROPOSED ACTION

Staff recommend s that the Board approve the updates to the transportation conformity budge ts for the San Joaquin Valley as contained in the revised Table C

- 4. If approved, the updated transportation conformity budgets will be submitted to U.S. EPA as a revision to the California S IP for U.S. EPA to use in its review of the 2012 PM2.5 P lan

.APPENDIX A