1. (a) Minor facility permit actions.

   1. (1) Any minor facility seeking a permit for a modification that when completed would turn it into a Part 70 source is required to apply under subsection (b) of this section.
   2. (2) Any Part 70 source seeking a permit that would limit its potential to emit such that when issued it would qualify as a minor facility requires a Tier II application.

2. (b) Part 70 source permits. The following air quality authorizations for Part 70 sources require Tier II applications.

   1. (1) New permits.

      1. (A) New construction permit for a new Part 70 source not classified under Tier III.
      2. (B) New construction permit for an existing Part 70 source for any change considered significant under 252:100-8-7.2(b)(2) and which is not classified under Tier III.
      3. (C) New operating permit for a Part 70 source.
      4. (D) [Reserved]
      5. (E) New acid rain permit that is independent of a Part 70 permit application.
      6. (F) New temporary source permit under 252:100-8-6.2.

   2. (2) Modifications of permits.

      1. (A) Significant modification, as described in 252:100-8-7.2(b)(2), of an operating permit that is not based on an underlying construction permit processed under Tier II or III, and 252:100-8-8.
      2. (B) Modification of an operating permit when the conditions proposed for modification differ from the underlying construction permit's operating conditions in a way considered significant under 252:100-8-7.2(b)(2).
      3. (C) A construction permit modification considered significant under 252:100-8-7.2(b)(2) and which is not classified under Tier III.
   3. (3) Renewals. Renewals of operating permits.

3. (c) Other authorizations. The following air quality authorizations require Tier II applications.

   1. (1) New, modified and renewed general operating permits.
   2. (2) Individual authorizations under any general operating permit for which a schedule of compliance is required by 252:100-8-5(c)(8)(B)(i).
   3. (3) Plant-wide emission plan approval under 252:100-37-25(b) or 252:100-39-46(j).
   4. (4) Alternative emissions reduction authorizations. (Also subject to state implementation plan revision procedures in 252:100-11.)

Added at 18 Ok Reg 1922, eff 6-11-01

Amended at 20 Ok Reg 1115, eff 6-1-03

Amended at 38 Ok Reg 1763, eff 9-15-21