Project-Level Conformity

Overview

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

 

  • Title
  • Date
  • Category
  • Available Files

4G07421 – Not a POAQC – Hot Spot Analysis Not Required

12/03/2024

PM Hot Spot

SBD990214 – Not a POAQC – Hot Spot Analysis Not Required

12/03/2024

PM Hot Spot

SBD990211 – Not a POAQC – Hot Spot Analysis Not Required

12/03/2024

PM Hot Spot

20192702 – Not a POAQC – Hot Spot Analysis Not Required

12/03/2024

PM Hot Spot

RIV050535A – Not a POAQC – Hot Spot Analysis Not Required

12/03/2024

PM Hot Spot

SB200810 – Not a POAQC – Hot Spot Analysis Not Required

12/03/2024

PM Hot Spot

ORA131105 – Not a POAQC – Hot Spot Analysis Not Required

12/03/2024

PM Hot Spot

LAMIP103 Exemption – TCWG Concurred that this is an Exempt Project

07/23/2024

PM Hot Spot

RIV060109 – TCWG Reaffirmed Not a POAQC – Hot Spot Analysis Not Required

06/24/2024

PM Hot Spot

ORA001102 Exemption - TCWG Concurred that this is an Exempt Project

05/28/2024

PM Hot Spot

LATP21MPO10 – Not a POAQC – Hot Spot Analysis Not Required

03/26/2024

PM Hot Spot

LA9919118rev, LA9919118rev-track Alternative 1, Alternative 2, Alternative 4 – Not a POAQC – Hot Spot Analysis Not Required. Alternative 3 – a POAQC – Hot Spot Analysis Required.

07/25/2023

PM Hot Spot