Transportation Conformity


The Transportation Conformity Working Group (TCWG) is a forum to support interagency coordination to maintain transportation conformity and help improve air quality in Southern California.


Project Level Conformity

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

This is a list of PM hot spot interagency review forms, qualitative analyses, and quantitative analyses that have been or will be reviewed by the Transportation Conformity Working Group (TCWG). The titles include the FTIP Project ID where available, and any determinations made by the TCWG (POAQC = Project of Air Quality Concern).


Transportation Control Measures

A Transportation Control Measure (TCM) is any measure that is specifically identified and committed to in the applicable implementation plan for the purpose of reducing emissions or concentrations of air pollutants from transportation sources by reducing vehicle use, changing traffic flow, or congestion conditions.​​​