An Emission Control Plan (ECP) is a plan that demonstrates how and when a facility will comply with requirements that it use pollution control technologies to reduce emissions of specific air pollutants. ECP requirements apply to:

  • Sources of Volatile Organic Compounds (VOC) or Oxides of Nitrogen (NOx) emissions for which standards have been set in the regulations or have the potential to emit 50 tons or more of either pollutant.
  • Municipal Waste Combustors that burn more than 250 tons of municipal solid waste per day.
  • Power Plants that emitted more than 500 tons of Sulfur Dioxide (SO2) and 500 tons of NOx during calendar years 1997, 1998 or 1999 and include any fossil fuel fired boiler or indirect heat exchanger that: 
    1. Is regulated under the Federal Acid Rain Program (40 CFR Part 72); 
    2. Serves as a generator with a nameplate capacity of 100 megawatts (MW) or more;
    3. Was permitted before August 7, 1977; and 
    4. Did not subsequently receive a MassDEP Plan Approval or a Prevention of Significant Deterioration Permit (40 CFR Part 52) before October 31, 1998.