1. (a) The owner or operator shall file an application with the department for a significant permit amendment of a temporary permit or state permit to operate, as applicable, for the following:

   1. (1) Any proposed change to an existing process or device that results in the following:

      1. a. Any increase in allowable hourly or annual emissions of nitrogen oxides, sulfur dioxide, VOCs, HAPs, or PM10; or
      2. b. Any increase in potential emissions equal to or greater than 5 pounds per hour of carbon monoxide;
   2. (2) Any proposed change to operating or emission limitations in the temporary permit or state permit to operate;
   3. (3) Any proposed change in the type of pollution control equipment specified in the existing permit; or
   4. (4) Any proposed change that results in an increase in previously-allowed loading of existing pollution control equipment by greater than 50%.

2. (b) A request for a significant permit amendment shall include the following:

   1. (1) A complete application form, as described in Env-A 1703 through Env-A 1708, as applicable and provided by the department, containing all pertinent information with regard to the amendment including, if applicable, the information specified in Env-A 1709;
   2. (2) The fee(s) specified in Env-A 702 through Env-A 705, as applicable;

   3. (3) A description of:

      1. a. The proposed change;
      2. b. The emissions resulting from the change; and
      3. c. Any new requirements that will apply if the change occurs;
   4. (4) If an air pollution dispersion modeling impact analysis is required pursuant to Env-A 606.02, documentation required pursuant to Env-A 606.04;
   5. (5) For a source with air pollution control equipment, as defined in Env-A 102, an air pollution control equipment monitoring plan or catalyst management plan pursuant to Env-A 810.01; and
   6. (6) If a plan is not required pursuant to Env-A 810.01, a description of the monitoring the source intends to conduct to demonstrate compliance with all applicable state and federal statutes, rules, and permits, as specified in Env-A 810.02.
3. (c) The department shall take final action on a request for a significant permit amendment within 90 days of receipt by the department of a request filed pursuant to (a) and (b), above, provided that the public notice and hearing procedures specified in Env-A 621 have been satisfied.
4. (d) The owner or operator shall not implement the proposed change unless and until the department issues the amended permit.

Source. #1710, eff 1-19-81; ss by #1864, eff 11-16-81; ss by #2332, eff 4-29-83; ss by #2938, eff 12-27-84; ss by #5033, eff 12-27-90; ss by #6057-B, eff 6-30-95; amd by #6342-B, eff 9-28-96; ss by #7879, eff 4-26-03 (formerly Env-A 612.03); ss by #9791, eff 10-1-10; ss by #10175, eff 9-1-12; ss by #13510, eff 12-17-22