The federal Clean Air Act (CAA) Amendments of 1990 required that each state develop a Title V Operating Permit Program, with a goal of compiling into a single document all of an individual facility's air pollution control approvals, permits and requirements.
In Massachusetts, the Department of Environmental Protection (MassDEP) implemented its Operating Permit & Compliance Program (see 310 CMR 7.00: Appendix C) to meet this mandate and is the issuing authority.
Operating Permit requirements apply to:
- Existing facilities with the potential to emit:
- 50 or more tons per year of volatile organic compounds (VOC),
- 50 or more tons per year of nitrogen oxides (NOx),
- 10 or more tons per year of a single Hazardous Air Pollutant (HAP), 25 or more tons per year of combined HAPs, or
- 100 or more tons per year of any other pollutant.
- Other facilities that do not exceed the above thresholds but are subject to certain federal requirements, as determined by the U.S. Environmental Protection Agency (EPA).
Operating Permits are facility-wide in scope and are valid for up to five years. See Operating Permit & Reporting Forms for additional information.
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