General Permit Program

The Division of Air Pollution Control (DAPC) has developed model general Permits-to-Install (GP) and model general Permits-to-Install and Operate for select sources in Ohio. The regulations for general permits can be found in Ohio Administrative Code OAC rule 3745-31-29. General Permit Fact Sheet [PDF]

A general permit is the same as any Permit-to-Install or Permits-to-Install and Operate that DAPC issues except all the terms and conditions of the permit have been developed in advance. This is referred to as the model general permit. A potential applicant can review the model general permit qualifying criteria and terms and conditions and then complete the application and sign the qualifying criteria document if they believe they qualify for that model GP.

DAPC will review the applicant's information to confirm they meet the qualifications and then issue the model GP to the applicant. At that point it becomes the applicant's general permit. All the terms and conditions of the model general permit remain the same when it is issued as the general permit. The general permit will include a cover page that identifies facility and emission unit specific information. 

Begin by locating the model general permit (GP) of interest using the following steps:

  • Click on the link for the model GP category of interest on the Available Model General Permits tab above.

  • Select the specific model GP of interest within the category desired by clicking on the link for the specific model GP of interest.

The applicant should begin by reviewing the "Qualifying Criteria" document for the model GP of interest. After determining that the source(s) qualifies based on the "Qualifying Criteria" document for the model GP of interest, the applicant should carefully review the terms and conditions of the model GP for which they are applying. The applicant should ensure he or she can comply with the requirements in the model GP as they are written and that they can continue to comply with all other permits previously issued at the source. The terms and conditions of a model GP cannot be modified for site specific conditions. However, the terms and conditions of a previously issued permit, for example a Permit-to-Install (PTI), can be modified if it is necessary in order for the source to comply with the terms and conditions of the model GP. If this is the case for your source, contact your District Office or Local Air Agency for additional information.

Notification of well completion reports, required by the New Source Performance Standards Subpart OOOO, should be submitted at the following email address at least two days before the commencement of well completion operations. This report must contain the information identified in 40 CFR 60.5420(a)(2); and it is recommended that you include the county and the facility ID number, if available.

When the applicant is ready to apply, the following steps should be followed:

  1. Complete and sign the Qualifying Criteria document. The same signatory for the application should sign this document.

  2. Complete the application and any Emissions Activity Category (EAC) form(s). Be sure to read  the application instructions for the specific model general permit for which you are applying. It will provide the applicant with information regarding which sections of the application and EAC form(s) must be completed. Have the signatory, as defined in Ohio Administrative Code (OAC) rule 3745-31-04(B), sign the application.

  3. Include a cover letter that states specifically which model general permit you are applying for, using the "Source Description" and "MGP Number" contained on the Qualifying Criteria document.

  4. Submit a hardcopy of all documents to the District Office or Local Air Agency.
    IMPORTANT: You have the option of applying through Ohio EPA's online Air Services. Applying online eliminates the need to sign and mail paper copies of these forms.

Ohio expects to be able to issue the model GP within 45 days of receipt of a complete application.

As required by the general permit (GP) rules, each model GP will be made available for public comment prior to making it available to the regulated community for application. Listed below is information regarding model GPs that are being developed and are currently available for public comment.

Availability of Draft General Permits for Natural Gas and No. 2 Oil-Fired Boilers

The Ohio Environmental Protection Agency, Division of Air Pollution Control (DAPC) is making available draft revised general permits for natural gas and No. 2 oil-fired boilers. There are eight general permits available for four boiler capacity ranges (>10 to 19.9 MMBtu/hr, 20 to 29.9 MMBtu/hr, 30 to 39.9 MMBtu/hr, and 40 to 50 MMBtu/hr) and area or major sources of hazardous air pollutants (HAPS).

The existing general permits for boilers were updated to account for the following: 

  • Incorporate OAC rule 3745-31-05(A)(3)(a)(ii), which exempts boilers from Best Available Technology (BAT) requirements for each pollutant that has the potential to emit of less than 10 tons per year.
  • Incorporate 40 CFR Part 63, Subpart DDDDD – National Emission Standards for Hazardous Air Pollutants (NESHAP) for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters.
  • Incorporate OAC rule 3745-110 -- Nitrogen Oxides Reasonably Available Control Technology (RACT). Boilers with a maximum heat input capacity of less than 40 MMBtu/hr are exempt from this rule.
  • Removed OAC rules 3745-21-07(B), 3745-21-08(B) and 3745-23-06(B) from the permit because the rules were rescinded.
  • Incorporate the use of ultra-low sulfur No. 2 fuel oil, which reduces potential sulfur dioxide (SO2) emissions.

DAPC is requesting comments on the draft general permit documents located here.

DAPC will accept comments on the draft general permits through Thursday, March 26, 2020.

Please submit your comments via email to or by mail to:

Michael Maleski
Ohio Environmental Protection Agency, DAPC
Lazarus Government Center
P.O. Box 1049
Columbus, Ohio 43216-1049
Phone: (614) 644-3613