Project Level Conformity
The Transportation Conformity Working Group (TCWG) serves as the primary forum for interagency consultation on all matters related to both regional and project-level transportation conformity to comply with federal transportation and air quality planning requirements in the six-county SCAG region. The TCWG consists of staff representatives from FHWA, FTA, U.S. EPA, Caltrans Headquarters, Caltrans Districts, CARB, CTCs, air districts, and transit operators in the SCAG region. The group meets monthly on the fourth Tuesday of the month.
For particulate matter (PM) hot spot interagency consultation, SCAG staff facilitates the review and determination by TCWG as to whether a project is a Project of Air Quality Concern (POAQC), as well as the review and approval of modeling protocols and subsequent quantitative PM hot spot analysis if and after a project has been determined to be a POAQC by TCWG.
TCWG discusses, reviews, and makes a determination as to whether a project is POAQC based on project information included in the PM Hot Spot Interagency Review Form. The form applies to all project-level conformity review cases, as the lead agency requests TCWG’s concurrence that their project is not a POAQC. Projects exempt from conformity analysis are also determined through review of the Caltrans Conformity Streamlining Exemption Form.
If you need to submit a form to TCWG for interagency consultation, please coordinate with the state and/or local project representative for your project’s county. Contact information for project-level conformity representations can be found in the “Project-Level Conformity Contact List.”
The submissions below include all of the PM hot spot interagency review forms, qualitative analyses, and quantitative analyses that have been or will be reviewed by the TCWG. The titles include the FTIP Project ID, where available, and any determinations made by the TCWG (e.g., Project of Air Quality Concern (POAQC)).
Instructions for PM Hotspot Interagency Review
Project-Level Conformity Contact List
PM Hot-Spot Interagency Review Form Template
Caltrans Conformity Streamlining Exemption Form
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 |
|---|---|---|---|
| RIV180145 (Corrected From RIV180142) FTIP ID Correction Memo – TCWG Reaffirmed Not a POAQC | 05/24/2022 | PM Hot Spot | |
| EA#1M190 Revised – Not a POAQC – Hot Spot Analysis Not Required | 04/26/2022 | PM Hot Spot | |
| EA#1M860 – TCWG concurred that this is an Exempt Project | 04/26/2022 | PM Hot Spot | |
| LA0G441 – Not a POAQC – Hot Spot Analysis Not Required | 02/22/2022 | PM Hot Spot | |
| LALS06 Rev – Not a POAQC – Hot Spot Analysis Not Required | 02/22/2022 | PM Hot Spot | |
| EA# 1M190 SR-243 Intersection Improvements in City of Banning – Not a POAQC – Hot Spot Analysis Not Required | 01/25/2022 | PM Hot Spot | |
| RIV131202 – Not a POAQC – Hot Spot Analysis Not Required | 01/25/2022 | PM Hot Spot | |
| Interim I-15 Stateline Project – TCWG concurred that this is a regionally significant project. | 12/07/2021 | PM Hot Spot | |
| LA99ITC101 – Not a POAQC – Hot Spot Analysis Not Required | 12/07/2021 | PM Hot Spot | |
| RIV151218 – Not a POAQC – Hot Spot Analysis Not Required | 12/07/2021 | PM Hot Spot | |
| RIV190901 – Not a POAQC – Hot Spot Analysis Not Required | 12/07/2021 | PM Hot Spot | |
| ORA001103 Exemption – Revised – TCWG concurred that this is an Exempt Project. | 08/24/2021 | PM Hot Spot | |
| RIV071267B – TCWG concurred that this is not an Exempt Project. | 08/24/2021 | PM Hot Spot | |
| LALS06 – Not a POAQC – Hot Spot Analysis Not Required | 07/27/2021 | PM Hot Spot | |
| ORA001103 Exemption – TCWG Requested Collision Data. See revision in August 2021 | 07/27/2021 | PM Hot Spot | |
| RIV180145 (Corrected From RIV180142) – Not a POAQC – Hot Spot Analysis Not Required | 06/22/2021 | PM Hot Spot | |
| ORA001102 Exemption – Exempt and Not a POAQC – Hot Spot Analysis Not Required | 02/23/2021 | PM Hot Spot | |
| ORA001103 Revised – Not a POAQC – Hot Spot Analysis Not Required | 02/23/2021 | PM Hot Spot | |
| RIV160405 – Not a POAQC – Hot Spot Analysis Not Required | 02/23/2021 | PM Hot Spot | |
| 20190010 Revised – Not a POAQC – Hot Spot Analysis Not Required | 01/26/2021 | PM Hot Spot | |
| 4G07421 – Not a POAQC – Hot Spot Analysis Not Required | 01/26/2021 | PM Hot Spot | |
| LALS01 – Not a POAQC – Hot Spot Analysis Not Required | 01/26/2021 | PM Hot Spot | |
| LAOG1094 – Not a POAQC – Hot Spot Analysis Not Required | 01/26/2021 | PM Hot Spot | |
| ORA001103 – Informational Update | 01/26/2021 | PM Hot Spot | |
| ORA001103 – Not a POAQC – Hot Spot Analysis Not Required | 12/08/2020 | PM Hot Spot | |
| ORA111207 – Not a POAQC – Hot Spot Analysis Not Required | 10/07/2020 | PM Hot Spot | |
| RIV031215 – Not a POAQC – Hot Spot Analysis Not Required | 10/07/2020 | PM Hot Spot | |
| LA0G1453 – Not a POAQC – Hot Spot Analysis Not Required | 09/22/2020 | PM Hot Spot | |
| ORA001103 Exemption Form | 08/25/2020 | PM Hot Spot | |
| RIV060109 – Not a POAQC – Hot Spot Analysis Not Required | 08/25/2020 | PM Hot Spot |