Transportation Conformity Working Group - 2023 - 2021
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 6, 2018 TCWG Meeting Agenda | 02/06/2018 | Agenda | |
| February 6, 2018 TCWG Meeting Minutes | 02/06/2018 | Minutes | |
| December 5, 2017 TCWG Meeting Agenda | 12/05/2017 | Agenda | |
| December 5, 2017 TCWG Meeting Minutes | 12/05/2017 | Minutes | |
| Revised October 24, 2017 TCWG Meeting Agenda | 10/24/2017 | Agenda | |
| September 26, 2017 TCWG Meeting Agenda | 09/26/2017 | Agenda | |
| September 26, 2017 TCWG Meeting Minutes | 09/26/2017 | Minutes | |
| August 22, 2017 TCWG Meeting Agenda | 08/22/2017 | Agenda | |
| August 22, 2017 TCWG Meeting Minutes | 08/22/2017 | Minutes | |
| July 25, 2017 TCWG Meeting Agenda | 07/25/2017 | Agenda | |
| July 25, 2017 TCWG Meeting Minutes | 07/25/2017 | Minutes | |
| Effects of New PM Air Quality Standards Factsheet | 06/27/2017 | Presentation | |
| June 27, 2017 TCWG Meeting Agenda | 06/27/2017 | Agenda | |
| June 27, 2017 TCWG Meeting Minutes | 06/27/2017 | Minutes | |
| May 23, 2017 TCWG Meeting Agenda | 05/23/2017 | Agenda | |
| May 23, 2017 TCWG Meeting Minutes (Revised) | 05/23/2017 | Minutes | |
| April 25, 2017 TCWG Meeting Agenda | 04/25/2017 | Agenda | |
| April 25, 2017 TCWG Meeting Minutes | 04/05/2017 | Minutes | |
| March 29, 2017 Transportation Conformity Training Ozone and PM2.5 NAAQS Timelines | 03/29/2017 | Presentation | |
| March 29, 2017 Transportation Conformity Training Presentation | 03/29/2017 | Presentation | |
| March 28, 2017 TCWG Meeting Agenda | 03/28/2017 | Agenda | |
| March 28, 2017 TCWG Meeting Minutes | 03/28/2017 | Minutes | |
| February 28, 2017 TCWG Meeting Agenda | 02/28/2017 | Agenda | |
| February 28, 2017 TCWG Meeting Minutes | 02/28/2017 | Minutes | |
| January 24, 2017 TCWG Meeting Agenda | 01/24/2017 | Agenda | |
| January 24, 2017 TCWG Meeting Minutes | 01/24/2017 | Minutes | |
| Revised January 24, 2017 TCWG Meeting Agenda | 01/24/2017 | Agenda | |
| December 6, 2016 TCWG Meeting Agenda | 12/06/2016 | Agenda | |
| December 6, 2016 TCWG Meeting Minutes | 12/06/2016 | Minutes | |
| Revised October 25, 2016 TCWG Meeting Minutes | 10/25/2016 | Minutes |