The Transportation Conformity Working (TCWG) is a forum to support interagency coordination to help improve air quality and maintain transportation conformity in Southern California. The group meets on a monthly basis to facilitate an inclusive air quality planning process and to fulfill the interagency consultation requirements of the Federal Transportation Conformity Rule. The group helps resolve regional issues pertaining to transportation conformity and coordinates with and supports the quarterly meetings of the Statewide Transportation Conformity Working Group.

Membership of the Southern California TCWG includes federal (US EPA, US EPA Region 9, FHWA, FTA), state (CA Air Resources Board, Caltrans), regional (Air Quality Management Districts, SCAG, etc.), and sub-regional (County Transportation Commissions) agencies and other stakeholders.

If you have any questions regarding the TCWG, please contact the following staff:

Jonathan Nadler at (213) 236-1884 or email nadler@scag.ca.gov

Sheryll Del Rosario at (213) 236-1879 or email delrosar@scag.ca.gov

Next Meeting:

Tuesday, February 26, 2008
10:00 a.m. – 12:00 p.m.
SCAG Main Office - Riverside A

Past Meeting Agendas and Attachments

• January 22, 2008
• November 29, 2007
• October 23, 2007
• September 25, 2007
• August 28, 2007
• July 24, 2007
• June 26, 2007
• May 22, 2007
• April 24, 2007
• March 27, 2007
• February 27, 2007
• January 30, 2007

What's New

• Draft 2008 Regional Transportation Plan
• RTP Supplemental Reports:
  • Transportation Conformity
    • Modeling List
  The conformity analysis is based on the Draft RTP. The emission budgets in the analysis are those that have been locally and state approved, but have not yet been approved by U.S. EPA. It should be noted that a formal conformity finding cannot be adopted until U.S EPA has issued an adequacy finding on the emission budgets.
• Draft 2008 Regional Transportation Plan Update Program Environmental Impact Report

Project-Level Conformity

• Project-Level Conformity Contact List
• PM Hot Spot Interagency Review Form (.doc)  
• PM Hot Spot Analysis Project Review Lists

2006 RTIP Conformity Determination

• Conformity Determination ( 29 KB .pdf )
• Final 2006 RTIP Conformity Determination (see Technical Appendix — Volume 2 of 3)
• Conformity Determination for 2006 RTIP through Amendment #06-08 and 2004 RTP through Amendment #3

PM2.5 Conformity Determination

• PM2.5 Conformity Determination Letter from DOT ( 20 KB .pdf )
• Final PM2.5 Conformity Finding ( 1.15 MB .pdf )

8-Hour Ozone Conformity Determination

• 8-hour Conformity Determination Letter from DOT  ( 25 KB .pdf )
• Transmittal Letter ( 95 KB .pdf )
• Resolution Number 05-461-1 ( 228 KB .pdf )
• 8-Hour Ozone Conformity Finding ( 80 KB .pdf )
• Federal Non-Attainment Areas Map ( 96 KB .pdf )
• Conformity Determination for Searles Valley ( 21 KB .pdf )
• Supplemental Regional Emissions Data-Growth Visioning
  • Growth Visioning Emissions Data ( 14 KB .pdf )
  • Growth Visioning Tables ( 193 KB .pdf )

2007 Air Quality Management Plans (AQMP)

• Final 2007 AQMP for South Coast Air Basin