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Revocation Due to Inactivity, Abandonment, and/or Nonpayment

The Permits Branch within IDEM’s Office of Air Quality (OAQ) normally revokes a construction or operating air permit upon receipt of a request for permit revocation from the given source. However, some sources never construct the permitted facility, permanently cease operations, and/or vacate the permitted site without notifying IDEM. These types of sources usually have no reliable contact information but still have a valid construction and/or operating air permit. Based upon a due diligence effort to determine that an air permit should be revoked, IDEM creates a memorandum and supporting documentation log.

On a quarterly basis, OAQ compiles a list of sources for which revocations are proposed and posts the memorandum and supporting documentation log for the affected sources.

How to Request a Permit Revocation

To request a revocation, please complete the following three items and mail them to the address for Air Permit Revocations on the Air Permits Branch contact page:

  1. State Form 50639 - “Air Permit Application Cover Sheet”. This form must be signed (“wet ink” signature).
  2. State Form 50640 - “GDS-01 General Source Data – Basic Source Level Information”, Parts A, C and D only. IDEM needs this basic information to mail the “REVOCATION LETTER” to the correct person.
  3. A brief, one-page letter on company letterhead explaining the reason for the permit revocation. For example, your company is no longer operating, or your company has closed.

You can use IDEM’s Form Search web page to download the required state forms.

IDEM’s Compliance and Technical Assistance Program (CTAP) offers free, confidential compliance assistance upon request. Should you need assistance, please contact CTAP at (317) 232-8172 or request a consultation through CTAP’s portal.

Proposed Revocations

Following is a list of proposed permit revocations for the current year grouped by calendar year quarter:

1st Quarter 2025

2nd Quarter 2025

  • No revocations.

3rd Quarter 2025

  • No revocations.

4th Quarter 2025

  • No revocations.

Objections to any of the proposed revocations should be in writing and sent to the IDEM Office of Air Quality, Air Permit Revocations. If no one contacts IDEM within 30 days to object to the posted revocation(s), IDEM will revoke the air permit for the source(s).

This revocation process enables IDEM to maintain more accurate and up-to-date permits, inventory, and records concerning air emission sources in Indiana.

Archive

For more information on revocations due to inactivity, abandonment, and/or nonpayment, please review IDEM's Nonrule Policy Document regarding Revocation of Air Construction and/or Operating Permits, Air-040 (available on the IDEM Effective Nonrule Policies page).

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