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 |
|---|---|---|---|
| February 25, 2020 TCWG Meeting Agenda | 02/25/2020 | Agenda | |
| February 25, 2020 TCWG Meeting Minutes | 02/25/2020 | Minutes | |
| January 28, 2020 TCWG Meeting Agenda | 01/28/2020 | Agenda | |
| January 28, 2020 TCWG Meeting Minutes | 01/28/2020 | Minutes | |
| December 3, 2019 TCWG Meeting Agenda | 12/03/2019 | Agenda | |
| December 3, 2019 TCWG Meeting Minutes | 12/03/2019 | Minutes | |
| October 22, 2019 TCWG Meeting Minutes | 10/22/2019 | Minutes | |
| Revised October 22, 2019 TCWG Meeting Agenda | 10/22/2019 | Agenda | |
| September 24, 2019 TCWG Meeting Agenda | 09/27/2019 | Agenda | |
| September 24, 2019 TCWG Meeting Minutes | 09/24/2019 | Minutes | |
| September 27, 2019 TCWG Meeting Agenda | 09/24/2019 | Agenda | |
| August 27, 2019 TCWG Meeting Agenda | 08/27/2019 | Agenda | |
| August 27, 2019 TCWG Meeting Minutes | 08/27/2019 | Minutes | |
| July 23, 2019 TCWG Meeting Agenda | 07/23/2019 | Agenda | |
| July 23, 2019 TCWG Meeting Minutes | 07/23/2019 | Minutes | |
| June 25, 2019 TCWG Meeting Agenda | 06/25/2019 | Agenda | |
| June 25, 2019 TCWG Meeting Minutes | 06/25/2019 | Minutes | |
| May 28, 2019 TCWG Meeting Agenda | 05/28/2019 | Agenda | |
| May 28, 2019 TCWG Minutes | 05/28/2019 | Minutes | |
| April 23, 2019 TCWG Meeting Agenda Item 4.2 Summary of Issues and Potential Risks | 04/23/2019 | Presentation | |
| April 23, 2019 TCWG Meeting Minutes | 04/23/2019 | Minutes | |
| Revised April 23, 2019 TCWG Meeting Agenda | 04/23/2019 | Agenda | |
| 2016 RTP/SCS and 2019 FTIP Transportation Conformity Re-Determination for 2015 8-Hour Ozone Standards Draft Report | 03/26/2019 | Presentation | |
| March 26, 2019 TCWG Meeting Agenda | 03/26/2019 | Agenda | |
| March 26, 2019 TCWG Meeting Agenda Packet | 03/26/2019 | Full Packet | |
| March 26, 2019 TCWG Minutes | 03/26/2019 | Minutes | |
| Public Notice of Availability of Draft Conformity Re-Determination Report for Public Review | 03/26/2019 | Presentation | |
| Updated Proposed Framework of Regional Emissions Analysis for SCAG Connect SoCal | 03/26/2019 | Presentation | |
| February 26, 2019 TCWG Meeting Agenda | 02/26/2019 | Agenda | |
| February 26, 2019 TCWG Meeting Agenda Packet | 02/26/2019 | Agenda |