Transportation planning for areas designated as nonattainment for National Ambient Air Quality Standards
NAAQS is accomplished by project assistance and funding from the Congestion Mitigation and Air Quality Improvement Program (CMAQ).
Environmental Protection Agency (EPA) sets national air quality standards and monitors each state’s air quality index. Once an area has been designated as in violation of the legal level of a specific pollutant monitored by EPA, certain restrictions apply to transportation construction or project types. Compliance with conformity requirements is linked to transportation funding from the federal level.
View Transportation Conformity Guides