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Parts of a Permit

Although each permit is a unique document, all permits contain the same basic parts:

  • Section A - Source Summary: which includes what kind of industry the source operates within and lists the air emissions units that are regulated by the permit.
  • Section B - General Conditions: Information about the terms of the permit (how long it is effective), including its expiration date and conditions for its modification, revocation and renewal; IDEM’s permitting and enforcement authority; general responsibilities and duties of the permitted source.
  • Section C - Source Operation Conditions: Pollutant limits and standards that apply to the entire source such as regulations for opacity, open burning, incineration, fugitive dust, and asbestos; general requirements for performance testing and retesting, compliance monitoring, corrective action and response measures; and schedules for submitting emissions statements; requirements for retaining records on site; and information required in deviation and monitoring reports.
  • Section D - Emission Unit Operation Conditions: Information about specific emissions units, processes or other points of releases, emission limitations and standards that apply to each, requirements for determining compliance with the emission limitations and standards, requirements for monitoring emissions units and/or operating and monitoring pollution controls, testing requirements, and record keeping and reporting requirements.
  • Section E - Federal Rules: Information about federal rules that apply to the source. One or more federal rules may apply to a permitted source. If a federal rule applies, the federal rule will be an attachment to the permit. Where no federal rules are applicable, the permit will not contain this section.
  • Technical Support Document (TSD) and Appendices: Potential to Emit (PTE) calculations, evaluation of applicable state and federal rules, and any other applicable analyses, including but limited to, PSD or VOC Best Available Control Technology (BACT) Analysis, Maximum Achievable Control Technology (MACT) Analysis, Air Quality Analysis and Impacts Analysis, Lowest Achievable Emission Rate (LAER) and Emission Offset Analysis.
  • Addendum to the Technical Support Document (ATSD): If changes are made to a draft permit due to comments received from the source, IDEM, U.S. EPA, or the public, IDEM’s formal comment responses and any changes to the permit will be included in an ATSD.

Permit Number

Each permit number is unique and includes a letter for permit type, a county code, a unique permit number, and a plant ID assigned to the source. In the example T 009-21345-00001, T is the permit type, 009 is the county code, 21345 is the unique permit number, and 00001 is the plant ID.

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