Colorado Air - General regulations & environmental compliance analysis

Colorado Air - General: What you need to know

Governing Law and Regulations

State implementation plan: 40 CFR 51, 40 CFR 52.320 to 52.351, and 5 Code of Colorado Regulations (CCR) 1001-20

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Attainment status: 40 CFR 81.306

Air permits: 5 CCR 1001-5

Hazardous air pollutants (HAPs): 5 CCR 1001-10

New source performance standards (NSPS): 5 CCR 1001-8

Regional haze: 5 CCR 1001-5, Part F

Regulatory Agency

Colorado Department of Public Health and Environment (CDPHE) Office of Environment Air Pollution Control Division

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Colorado's air program is shaped by its state implementation plan (SIP). The SIP is a plan that details basic strategies for the implementation, maintenance, and enforcement of the National Ambient Air Quality Standards (NAAQS). As mandated by the Clean Air Act (CAA), each state must adopt and submit a SIP to the U.S. Environmental Protection Agency (EPA) for approval.

Administration and enforcement. CDPHE's Air Pollution Control Division is responsible for administering and enforcing Colorado's air rules.

State Requirements



Colorado's SIP was officially submitted to EPA in January 1972 and is frequently amended to comply with the 1990 CAA amendments. The SIP focuses on permitting, requirements for nonattainment areas, HAPs, and numerous other air-related requirements.

Attainment Status

Areas of the state that do not meet the NAAQS are designated as nonattainment areas. Colorado has nonattainment areas for the 8-hour ozone standard. Nonattainment of the NAAQS significantly impacts the permitting procedures and emission limitations imposed on sources of air ...

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