Idaho Title V regulations & environmental compliance analysis

Idaho Title V: What you need to know

Governing Law and Regulations

Tier II operating permits: Idaho Rules of Administrative Procedures of the Attorney General (IDAPA) to

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Title V operating permits: IDAPA to

Applicability: IDAPA, IDAPA, and IDAPA

Application content: IDAPA

Insignificant activities: IDAPA

Action on applications: IDAPA to

Fees: IDAPA to

Regulatory Agency

Idaho Department of Environmental Quality (DEQ) Air Quality Division

Comparison: State vs. Federal
  • Rules. Idaho is authorized by the U.S. Environmental Protection Agency (EPA) to administer its own air emissions permit program. Idaho's Title V operating permit program, referred to as the Tier I operating permit program, generally follows the federal program, including the definition of major source and program applicability. DEQ received full approval of its program from the EPA effective November 5, 2001.
  • Administration and enforcement. DEQ's Air Qaulity Division is responsible for the administration and enforcement of the state's air emissions permit program.
  • State Requirements


    Operating Permits

    Idaho has no operating permit requirements for nonmajor sources. Such sources must comply with the terms and conditions of the permit to construct. See CONSTRUCTION PERMITS in the state section AIR EMISSIONS PERMITS for more information.

    Tier II Operating Permits

    IDAPA to

    Applicability. In Idaho, a Tier II operating permit may function as a synthetic minor operating permit used to establish operational and emissions restrictions to limit the source’s potential to emit. Such a permit ...

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