Congestion Mitigation and Air Quality Improvement Program

Congestion Mitigation and Air Quality Improvement Program
Name	Congestion Mitigation and Air Quality Improvement Program
Established	1991
Jurisdiction	United States
Parent agency	United States Department of Transportation
Website	(official)

Contents

Congestion Mitigation and Air Quality Improvement Program is a federal surface transportation funding source created to reduce transportation-related emissions and improve urban air quality while addressing traffic congestion in nonattainment and maintenance areas. The program operates within the framework of the Intermodal Surface Transportation Efficiency Act of 1991, the Transportation Equity Act for the 21st Century, and the Fixing America's Surface Transportation Act, interacting with agencies such as the Federal Highway Administration, the Environmental Protection Agency, and state departments like the California Department of Transportation. It funds a wide range of projects from transit capital to emissions-reducing technologies across metropolitan planning organizations including the Metropolitan Transportation Authority (New York), the Chicago Metropolitan Agency for Planning, and the Metropolitan Council (Minnesota).

Overview

The program provides formula-based grants administered by the Federal Highway Administration and coordinated with the Environmental Protection Agency and state agencies including the Texas Department of Transportation, the New York State Department of Transportation, and the California Air Resources Board. Eligible projects must be consistent with plans developed by metropolitan planning organizations such as the Los Angeles County Metropolitan Transportation Authority, the Port Authority of New York and New Jersey, and the Regional Transportation Commission of Southern Nevada, and with air quality goals under the Clean Air Act Amendments of 1990. Typical recipients include state transportation agencies, transit authorities like the Metropolitan Transportation Authority (New York), port authorities such as the Port of Long Beach, and local governments like the City of Chicago.

Established by the Intermodal Surface Transportation Efficiency Act of 1991, the program was a response to air quality mandates in the Clean Air Act Amendments of 1990 and was subsequently reauthorized by the Transportation Equity Act for the 21st Century (TEA-21), the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), and the Moving Ahead for Progress in the 21st Century Act (MAP-21), culminating in provisions under the Fixing America's Surface Transportation Act (FAST Act). Congressional debates involved committees such as the United States House Committee on Transportation and Infrastructure and the United States Senate Committee on Environment and Public Works, and key legislative actors included figures from the 1990s United States Congress and administrations from George H. W. Bush to Joe Biden. Judicial and regulatory interpretations have referenced decisions and guidance from the United States Court of Appeals for the D.C. Circuit and the United States Environmental Protection Agency rulemaking.

Funding is apportioned through formulas administered by the Federal Highway Administration and allocated to states like California, Texas, and New York with oversight by agencies including the Environmental Protection Agency and metropolitan planning organizations such as the Metropolitan Transportation Authority (New York), the Chicago Metropolitan Agency for Planning, and the Metropolitan Council (Minnesota). Eligible projects include activities by recipients such as the Los Angeles County Metropolitan Transportation Authority, the Port Authority of New York and New Jersey, and the Metropolitan Transit Authority of Harris County (METRO), and must serve areas designated by the Environmental Protection Agency as nonattainment or maintenance for standards like the National Ambient Air Quality Standards. Cost-sharing requirements and fiscal controls interact with programs like the Highway Trust Fund, the Federal Transit Administration grant programs, and state budgets managed by offices such as the California Department of Transportation.

Common project categories have included transit capital investments by agencies like the Metropolitan Transportation Authority (New York), bicycle and pedestrian infrastructure in jurisdictions such as the City of Portland, Oregon and the City of Minneapolis, traffic flow improvements in corridors managed by the Texas Department of Transportation, and vehicle emission-reduction programs in fleets operated by the Port of Los Angeles and the Port Authority of New York and New Jersey. Demonstration projects have involved partnerships with research organizations like the National Renewable Energy Laboratory, equipment replacement initiatives tied to the South Coast Air Quality Management District, and congestion pricing pilots inspired by programs in cities such as London and studies from institutions like the Brookings Institution and the Urban Institute.

Implementation relies on coordination among federal agencies such as the Federal Highway Administration and the Environmental Protection Agency, state transportation departments including the California Department of Transportation and the Texas Department of Transportation, metropolitan planning organizations such as the Metropolitan Transportation Authority (New York) and the Chicago Metropolitan Agency for Planning, and local transit operators like the Metropolitan Transit Authority of Harris County (METRO). Project selection, monitoring, and reporting intersect with regulatory frameworks established by the Clean Air Act Amendments of 1990 and grant management practices used by the Federal Transit Administration and the Department of Transportation Office of Inspector General. Technical assistance and evaluation have been provided by research centers such as the Transportation Research Board and the National Academy of Sciences.

Evaluations by entities including the Government Accountability Office, the Congressional Budget Office, and academic researchers from institutions like Massachusetts Institute of Technology and University of California, Berkeley have documented emissions reductions, congestion impacts, and cost-effectiveness with mixed results. Supporters cite case studies involving the Los Angeles County Metropolitan Transportation Authority, the Chicago Transit Authority, and the Bay Area Rapid Transit system for benefits in California and Illinois, while critics including policy analysts from the Cato Institute and commentators in outlets such as The New York Times have raised concerns about program fragmentation, allocation inefficiencies, and measurement challenges. Proposals for reform have been discussed in hearings of the United States House Committee on Transportation and Infrastructure and the United States Senate Committee on Environment and Public Works and in reports by the Brookings Institution and the Urban Institute.