Skip Navigation
DEQ - Department of Environmental Quality | DEQ Department of Environmental Quality | DEQ
Department of Environmental Quality | DEQ
Email this Page
Share this Link on Facebook
Tweet this page on Twitter!
Air Permits
  • Air pollution sources are evaluated and investigated for compliance with air standards and permit requirements. Here you will find an explanation of the types of permits required by the Department of Environmental Quality, forms, and other related information.

  • Permits to Install/New Source Review (PTI/NSR)

    Rule 201 of the Michigan Air Pollution Control Rules requires a person to obtain an approved Permit to Install for any potential source of air pollution unless the source is exempt from the permitting process. Does your business have paint or other coating application booths, storage tanks, printing presses, boilers, soil remediation projects, plating operations, degreasers, ovens, or any other process that may emit air pollution? If so, your facility may need to complete an Air Use Permit application.

  • Renewable Operating Permits (ROP/Title V)

    The operating permits program is a national permitting system, administered by each state. It is required by Title V of the Federal Clean Air Act of 1990. In Michigan, these permits are known as "renewable operating permits." They are often referred to as "ROPs" or "RO Permits." Each "major source" is subject to the program. A "major source" is a facility that is capable of emitting more than certain amounts of air contaminants. The goal is to ensure that source operators know what air pollution control requirements apply to them. The public will also be better informed about what is required of sources of pollution in their neighborhoods.

  • Clean Air Interstate Rule (CAIR) Budget Permits

    The United States EPA's Clean Air Interstate Rule (CAIR), which uses a cap and trade system to reduce sulfur dioxide (SO2) by over 70 percent and nitrogen oxides (NOx) by over 60 percent from 2003 levels, applies to electric generating units and to non-electric generating units formerly subject to the NOx Budget Permit program. Michigan implements the federal requirements through state regulations. Michigan's Rule 821 requires subject sources to obtain and operate in compliance with a CAIR Annual NOx Budget permit and/or CAIR Ozone NOx Budget permit. Rule 420 requires subject sources to obtain and operate in compliance with a CAIR SO2 Budget permit. All CAIR Budget permits must be issued and renewed in keeping with Michigan's Renewable Operating Permit program procedures.

  • Acid Rain Permits (Title IV)

    Electric generating units (EGU) which sell electricity to the grid and burn fossil fuel may be required to obtain and operate in compliance with a Phase II acid rain permit, pursuant to Title IV of the federal Clean Air Act. Those EGUs that have a nameplate capacity of less than 25 MW and burn a fuel with an annual average sulfur content of less than 0.05% are exempt from Title IV. The Michigan Department of Environmental Quality, Air Quality Division (AQD) is the authority responsible for issuance of Phase II acid rain permits in Michigan. Those units which become subject to Title IV are required to submit an application to the AQD 24 months before the unit commences operation.

  • MACT Determinations

    Under the Clean Air Act, the U.S. EPA is required to develop standards for industrial categories of "major" sources of hazardous air pollutants (HAPs) that require the application of maximum achievable control technology (MACT). Section 112(g) requires a "case-by-case MACT determination" by the Air Quality Division if a major source is constructed or reconstructed before the U.S. EPA issues a MACT regulation for that particular source category. Section 112(j), commonly referred to as the "MACT hammer," requires a case-by-case MACT determination if U.S. EPA fails to promulgate a standard within 18 months after the scheduled date.

  • Air Quality Division | Permits PDF icon