Tag Archives: Air Quality


Regarding their regional transportation plans and transportation capital improvement programs, the Housatonic Valley Metropolitan Planning Organization (HVMPO) and the South Western Region Metropolitan Planning Organization (SWRMPO) are required to submit Air Quality Conformity Statements to the US Federal Highway Administration and to the US Environmental Protection Agency (EPA). Continue reading 30-DAY PUBLIC COMMENT PERIOD UNDERWAY

Air Quality Conformity

Air Quality Conformity


The State of Connecticut and each of the state’s planning regions are required to demonstrate that Transportation Improvement Programs (TIP) and Long Range Transportation Plans (LRTP) do not violate the federal Clean Air Act of 1990 (CAAA). The Connecticut Department of Transportation (CTDOT) performs transportation and air quality modeling for the entire state, periodically releasing determinations (determination reports) which demonstrate CAAA compliance for the planning regions.

To improve air quality, the United States Environmental Protection Agency (EPA) has set thresholds for the amount of pollutants in the air. In more populated and congested areas, coordination with transportation and air quality officials is required to ensure projects do not hinder an area’s ability to reach clean air goals. The resulting determination reports are utilized to help achieve those objectives.

For further information and subsequent details, the determination reports can be found here.

For more information, please contact Jamie Bastian at jbastian@westcog.org.


Congestion Mitigation and Air Quality (CMAQ) Program


2021 CMAQ Solicitation:

The Congestion Mitigation and Air Quality (CMAQ) Improvement Program is a Federal program that funds transportation projects and programs that contribute to attainment or maintenance of the national ambient air quality standards (NAAQS) for ozone, carbon monoxide, and particulate matter under provisions in the Clean Air Act (CAA), Title 42, United States Code. As a non-attainment/maintenance area for ozone and particulate matter, Connecticut receives Federal CMAQ Improvement Program funds based on the population in the non-attainment areas of the state and the severity of air quality problems. 

2021 CMAQ Solicitation:

Solicitation Documents:

Reference Documents: