Our Work

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)).  

Project-Level Conformity Contact List
PM Hot-Spot Interagency Review Form Template
Caltrans Conformity Streamlining Exemption Form

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Two Column
Title Date Category Available Files
RIV200738 05/26/2020 PM Hot Spot
20190010 – Not a POAQC – Hot Spot Analysis Not Required 04/28/2020 PM Hot Spot
LA0G1562 – Not a POAQC – Hot Spot Analysis Not Required 04/28/2020 PM Hot Spot
RIV060116 – Not a POAQC – Hot Spot Analysis Not Required 04/28/2020 PM Hot Spot
LA0G1562 – Not a POAQC – Hot Spot Analysis Not Required 02/25/2020 PM Hot Spot
LAF7204 – Not a POAQC – Hot Spot Analysis Not Required 02/25/2020 PM Hot Spot
LALS06 – Not a POAQC – Hot Spot Analysis Not Required 01/28/2020 PM Hot Spot
LA0G1562 – Not a POAQC – Hot Spot Analysis Not Required 12/03/2019 PM Hot Spot
LAF7207 – Not a POAQC – Hot Spot Analysis Not Required 12/03/2019 PM Hot Spot
LA0G1301 – Not a POAQC – Hot Spot Analysis Not Required 10/22/2019 PM Hot Spot
LA0G1457 – Not a POAQC – Hot Spot Analysis Not Required 10/22/2019 PM Hot Spot
ORA001105 – Not a POAQC – Hot Spot Analysis Not Required 10/22/2019 PM Hot Spot
LA0G1679 – Not a POAQC – Hot Spot Analysis Not Required 09/24/2019 PM Hot Spot
Lincoln Blvd. – Not a POAQC – Hot Spot Analysis Not Required 08/27/2019 PM Hot Spot
RIV071254 – Reaffirmed Not a POAQC – Hot Spot Analysis Not Required 08/27/2019 PM Hot Spot
LA0G1324 – Not a POAQC – Hot Spot Analysis Not Required 06/25/2019 PM Hot Spot
LAF5121 – Not a POAQC – Hot Spot Analysis Not Required 06/25/2019 PM Hot Spot
RIV041052 – Not a POAQC – Hot Spot Analysis Not Required 06/25/2019 PM Hot Spot
LA0C8046 – Not a POAQC – Hot Spot Analysis Not Required 05/28/2019 PM Hot Spot
ORA170007 – Not a POAQC – Hot Spot Analysis Not Required 05/28/2019 PM Hot Spot
IMP170701 – Not a POAQC – Hot Spot Analysis Not Required 04/23/2019 PM Hot Spot
LA990359 – Not a POAQC – Hot Spot Analysis Not Required 04/23/2019 PM Hot Spot
20179901 – Not a POAQC – Hot Spot Analysis Not Required 03/26/2019 PM Hot Spot
RIV071252 – Not a POAQC – Hot Spot Analysis Not Required 03/26/2019 PM Hot Spot
Updated SR-74 Widening Project – Not a POAQC – Hot Spot Analysis Not Required 03/26/2019 PM Hot Spot
LAF7123 – Not a POAQC – Hot Spot Analysis Not Required 02/26/2019 PM Hot Spot
RIV010206 – Not a POAQC – Hot Spot Analysis Not Required 12/04/2018 PM Hot Spot
LA0G1119 Update - (Was determined to be not a POAQC on September 25, 2018) 10/23/2018 PM Hot Spot
LALS04 Update - (Was determined to be not a POAQC on May 22, 2018) 10/23/2018 PM Hot Spot
RIV080904 – Not a POAQC – Hot Spot Analysis Not Required 10/23/2018 PM Hot Spot
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