What is a Transportation Management Area?
For large urban areas (over 200,000 in population), Congress provided a greater role by having the Secretary of Transportation certify these as Transportation Management Areas (TMAs). Metropolitan Planning Organizations that are designated as TMAs have greater requirements for congestion management, project selection and certification.
The Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) jointly review and evaluate the transportation planning process every four years. In nonattainment or maintenance areas the FHWA and FTA review to ensure air quality conformity regulations are followed in TMAs.