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State Implementation Plans (SIPs)

Attainment/Maintenance State Implementation Plans (SIPs)


All Colorado communities are currently in attainment of all National Ambient Air Quality Standards, with the exception of the Front Range ozone control area, which is non-attainment for the 8-hour ozone standard.


Map of Attainment/Maintenance Areas



Below is a list of the plans that show how communities that once violated federal clean air standards have attained and will maintain those standards.


If a plan you are seeking is not listed here, please e-mail us at cdphe.commentsapcd@state.co.us.




 Other Air Quality Planning Information


More Information

Curt Taipale