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Air Quality


	Information by State Print version

The Clean Air Act is the nation's premier law for protecting public health and the environment from dangerous air pollution. The 1990 Clean Air Act is the most recent version of a law first passed in 1970. The 1990 amendments made major changes in the Clean Air Act.

The location of areas designated by U.S. EPA as polluted under the Clean Air Act are documented in the U.S. EPA Nonattainment Area List, which should be available at state environmental protection offices or regional U.S. EPA offices.

Air Quality Areas

Is the project within a "non-attainment" or "maintenance" area identified in the air quality State Implementation Plan (SIP)?

Threshold: The Clean Air Act (42 U.S.C. 7401 et seq.) prohibits federal assistance to projects that are not in conformance with the SIP. New construction and conversion, which are located in "non-attainment" or "maintenance" areas as determined by the EPA may need to be modified or mitigation measures developed and implemented to conform to the SIP.

Documentation: Grantees should select A_ or B_ for the condition that best describes the project and document the source of the information.

A. The proposed project is located in a "non-attainment" or "maintenance" area and a written determination by HUD will be made whether the project is in conformance with the SIP.

B. The grantee provides HUD with a finding which states that the project is not located in a non-attainment" or "maintenance" area of the SIP.

For further information on local issues consult the Environmental Contact in your area.

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