Definition of Terms

Statute - Clean Air Act (CAA)
Regulations
- SIP - State Implementation Plan (State or Local Air Regulations)
- NSPS - New Source Performance Standard (Federal Regulations promulgated under 40 CFR Part 60)
- MACT - Maximum Achievable Control Technology (Federal Regulations promulgated under 40 CFR Part 63)
- NESHAP - National Emissions Standards for Hazardous Air Pollutants standards (Federal Regulations promulgated under 40 CFR Part 61and Part 63)
Air Pollutants
- CO - Carbon Monoxide
- HAP - Hazardous Air Pollutant, List of 188 Hazardous Air Pollutants
- PM - Particulate Matter
- NOx - Oxides of Nitrogen ( NO, NO2)
- SOx - Oxides of Sulfur
- VOC - Volatile Organic Compounds

CACO - Consent Agreement / Compliance Order (no longer used - See CAFO)
CAFO - Consent Agreement / Final Order. Under 40 CFR Part 22, revised 7/23/99, the term "Final Order" is now used to designate the document in which the EPA and the Respondent settle an administrative action.
NOD - Notice of Determination
NON - Notice of Non-Compliance
NOV - Notice of Violation
SEP - Supplemental Environmental Projects

If you have any questions concerning the Office of Enforcement, Compliance and Environmental Justice program contact:

Samantha Phillips Beers, Esq. (fairchild.samantha@epa.gov), Director for the Office of Enforcement, Compliance and Environmental Justice, EPA, Mid-Atlantic Region: (215) 814-2950.
Public Information Hotline - 800-438-2474
Business Assistance Hotline - 800-228-8711

Mid-Atlantic Office of Enforcement
Compliance and Environmental Justice

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