Transportation Conformity Working Group
The Transportation Conformity Working Group (TCWG) is a regional forum for interagency consultation and coordination to maintain transportation conformity and improve air quality in Southern California.
The TCWG meets monthly to facilitate inclusive transportation and air quality planning processes and to fulfill the interagency consultation requirements of Federal Transportation Conformity Regulations. The group helps resolve regional issues pertaining to transportation conformity and coordinates with the Statewide Transportation Conformity Working Group.
Membership of the TCWG includes federal (U.S. Environmental Protection Agency, Federal Highway Administration, Federal Transit Administration), state (California Air Resources Board, Caltrans), regional (air quality management districts, SCAG), and subregional (county transportation commissions) agencies and other stakeholders.
Staff Contact
Lijin Sun
(213) 236-1804
sunl@scag.ca.gov
California State Budget Reduces Barriers to Housing Production and Extends Deadline for Regional Early Action Planning (REAP 2.0) Program
Earlier this week, the governor signed the 2025-2026 state budget, which includes a suite of reforms to reduce barriers to housing production.
Connect SoCal 2024 Implementation Update: Sustainable Communities Strategy Accepted
On May 7, the California Air Resources Board (CARB) informed SCAG that it had accepted SCAG’s determination that the Connect SoCal 2024 Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS) meets CARB’s greenhouse gas (GHG) emission reduction targets.
General Assembly Elects 2025-26 Board Officers
The General Assembly voted to approve the nominations for the SCAG 2025-26 Regional Council officers as recommended by the Regional Council: Hon. Cindy Allen (City of Long Beach) will serve as 2025-26 Regional Council president; Hon. Ray Marquez (City of Chino Hills) will serve as Regional Council first vice president; and Hon. Jenny Crosswhite (City of Santa Paula) will serve as Regional Council second vice president. Leadership also recognized Hon.
Surface Transportation Block Grant and Congestion Mitigation and Air Quality Improvement Program Call for Project Nominations Now Open
The federal fiscal year 2026-27 and federal fiscal year 2027-28 Surface Transportation Block Grant program (STBG) and Congestion Mitigation and Air Quality Improvement program (CMAQ) SCAG online application opened for all eligible applicants on March 31. This application will be available through May 16 at 5 p.m.
Surface Transportation Block Grant and Congestion Mitigation and Air Quality Improvement Program Guidelines Now Available
On March 6, the SCAG Regional Council approved the federal fiscal year 2026-27 and federal fiscal year 2027-28 Surface Transportation Block Grant program (STBG) and Congestion Mitigation and Air Quality Improvement program (CMAQ) Program Guidelines.
| Title | Date | Category | Available Files |
|---|---|---|---|
| TCWG October 25, 2016 Agenda | 10/25/2016 | Agenda | |
| September 27, 2016 TCWG Meeting Agenda | 09/27/2016 | Agenda | |
| September 27, 2016 TCWG Meeting Agenda Item 4.2 SR-241 TCM Substitution Report | 09/27/2016 | Presentation | |
| September 27, 2016 TCWG Meeting Agenda Item 4.2 SR-241 TCM Substitution Request Letter | 09/27/2016 | Presentation | |
| September 27, 2016 TCWG Meeting Minutes | 09/27/2016 | Minutes | |
| August 23, 2016 TCWG Meeting Agenda | 08/23/2016 | Agenda | |
| TCWG August 23, 2016 Minutes | 08/23/2016 | Agenda | |
| July 26, 2016 TCWG Meeting Agenda Item 4.2 DRAFT SR-241 TCM Substitution Emission Analysis | 07/26/2016 | Presentation | |
| July 26, 2016 TCWG Meeting Minutes | 07/26/2016 | Minutes | |
| Revised July 26, 2016 TCWG Meeting Agenda | 07/26/2016 | Agenda | |
| Revised July 26, 2016 TCWG Meeting Minutes | 07/26/2016 | Minutes | |
| June 28, 2016 TCWG Meeting Minutes | 06/28/2016 | Minutes | |
| Revised June 28, 2016 TCWG Meeting Agenda | 06/28/2016 | Agenda | |
| May 24, 2016 TCWG Meeting Agenda | 05/24/2016 | Agenda | |
| May 24, 2016 TCWG Meeting Minutes | 05/24/2016 | Minutes | |
| Updated Draft 2016 South Coast AQMP Appendix IV-C Presentation | 05/24/2016 | Presentation | |
| April 26, 2016 TCWG Meeting Minutes | 04/26/2016 | Minutes | |
| Revised April 26, 2016 TCWG Meeting Agenda | 04/26/2016 | Agenda | |
| 4.4 Draft Outline of TCM BACM Analysis | 03/22/2016 | Presentation | |
| Final March 22, 2016 TCWG Meeting Agenda | 03/22/2016 | Agenda | |
| March 22, 2016 TCWG Meeting Agenda Item 4.3 SR-241 TCM Substitution Proposed Emission Analysis Methodology | 03/22/2016 | Presentation | |
| March 22, 2016 TCWG Meeting Agenda Item 4.4 Draft Outline of TCM BACM Analysis | 03/22/2016 | Presentation | |
| March 22, 2016 TCWG Meeting Minutes | 03/22/2016 | Minutes | |
| February 23, 2016 TCWG Meeting Attachment 4.1 LAX LAMP Overview | 02/23/2016 | Presentation | |
| February 23, 2016 TCWG Meeting Attachment 4.1 LAX LAMP Presentation | 02/23/2016 | Presentation | |
| February 23, 2016 TCWG Meeting Item 4.7 Attachment 1 Ventura RACM Presentation | 02/23/2016 | Presentation | |
| February 23, 2016 TCWG Meeting Item 4.7 Attachment 2 Ventura County RACM List | 02/23/2016 | Presentation | |
| February 23, 2016 TCWG Meeting Minutes | 02/23/2016 | Minutes | |
| Revised February 23, 2016 TCWG Meeting Agenda | 02/23/2016 | Agenda | |
| January 26, 2016 TCWG Meeting Agenda | 01/26/2016 | Agenda |