Overview & Guidance

  • Plan Approval Overview & Applicability Tables pdf format of 			Plan Approval Overview & Applicability Tables
	doc format of Plan Approval Overview & Applicability Tables

    Read this document first to determine whether your proposal requires a Plan Approval, is exempt, or qualifies for an alternative compliance pathway, such as a Permit-by-Rule or Environmental Results Program (ERP) certification.

  • Best Available Control Technology (BACT)

    Before approving a Limited Plan Application (LPA) or Comprehensive Plan Application (CPA), MassDEP must determine the best available air pollution control technology (BACT) for the proposal.

  • Modeling Guidance for Significant Stationary Sources of Air Pollution pdf format of 			Modeling Guidance: Significant Stationary Air Sources
	doc format of modguid.doc

    MassDEP will not approve the construction and operation of a new or modified facility if its emissions will cause or contribute to an exceedance of National Ambient Air Quality Standards (NAAQS).

Application Forms

Supplemental Forms

  • BWP AQ BACT - Determination of Best Available Control Technology Form doc format of 			Determination of Best Available Control Technology Form
	pdf format of Determination of Best Available Control Technology Form
    Before issuing its written approval of your application for a Plan Approval, MassDEP must determine the best available (air pollution) control technology (BACT) for your facility or process.
  • BWP AQ Coatings & Inks Form doc format of 			BWP AQ Coatings & Inks Form
	pdf format of BWP AQ Coatings & Inks Form

    Complete this form for the worst case coatings/inks in each category (e.g. primer, topcoat, sealer) containing the highest quantity of volatile organic compounds (VOC) and/or highest quantity of total hazardous air pollutants (HAPs).

  • BWP AQ Sound Form doc format of 			BWP AQ Sound Form
	pdf format of BWP AQ Sound Form
    Submit if construction or alteration of stationary equipment has the potential to cause noise, or in response to a MassDEP enforcement action citing noise as a condition of air pollution.

Pollution Control Device Forms

  • BWP AQ Adsorption Equipment Form doc format of 			BWP AQ Adsorption Equipment Form
	pdf format of BWP AQ Adsorption Equipment Form

    Submit with Form CPA-PROCESS whenever construction, substantial reconstruction or alteration of
    Adsorption Equipment is proposed unless exempt.

  • BWP AQ Afterburner/Oxidizer Form doc format of 			BWP AQ Afterburner/Oxidizer Form
	pdf format of BWP AQ Afterburner/Oxidizer Form

    Submit with Form CPA-PROCESS whenever construction, substantial reconstruction or alteration of an
    Afterburner/Oxidizer is proposed unless exempt.

  • BWP AQ Baghouse/Filter Form doc format of 			BWP AQ Baghouse/Filter Form
	pdf format of BWP AQ Baghouse/Filter Form

    Submit with Form CPA-FUEL and/or CPA-PROCESS whenever the construction, substantial
    reconstruction or alteration of an Baghouse/Filter is proposed unless exempt.

  • BWP AQ Cyclone Form doc format of 			BWP AQ Cyclone Form
	file size 1MB pdf format of BWP AQ Cyclone Form

    Submit with Form CPA-PROCESS whenever the construction, substantial reconstruction or alteration of
    a Cyclone is proposed unless exempt.

  • BWP AQ Electrostatic Precipitator Form doc format of 			BWP AQ Electrostatic Precipitator Form
	pdf format of BWP AQ Electrostatic Precipitator Form

    Submit with Form CPA-FUEL and/or CPA-PROCESS whenever construction, substantial reconstruction
    or alteration of an Electrostatic Precipitator is proposed unless exempt.

  • BWP AQ Selective Catalytic Reduction Form doc format of 			BWP AQ Selective Catalytic Reduction Form
	pdf format of BWP AQ Selective Catalytic Reduction Form

    Submit with Form CPA-FUEL and/or CPA-PROCESS whenever construction, substantial reconstruction or
    alteration of a Selection Catalytic Reduction system is proposed unless exempt.

  • BWP AQ Scrubber Form doc format of 			BWP AQ Scrubber Form
	pdf format of BWP AQ Scrubber Form

    Submit with Form CPA-FUEL and/or CPA-PROCESS whenever construction, substantial reconstruction
    or alteration of a Scrubber is proposed unless exempt.

  • BWP AQ Sorbant/Reactant Injection Technology Form doc format of 			BWP AQ Sorbant/Reactant Injection Technology Form
	pdf format of BWP AQ Sorbant/Reactant Injection Technology Form

    Submit with Form CPA-FUEL and/or CPA-PROCESS whenever construction, substantial reconstruction or
    alteration of a Sorbent/Reactant Injection Technology unit (e.g. carbon injection, lime injection) is proposed
    unless exempt.