Air Permits

Tier I Public Notice Guidance
AQD has developed implementation guidance for permitting under the new Tier I public notice requirements, effective September 15, 2021.
Produced Water Update
For tanks storing produced water and condensate/oil, DEQ will now require all applications submitted on or after April 15, 2021, to calculate breathing and working emissions assuming 100% of the tank throughput to be based on the properties of the condensate/oil which forms the free top layer. This requirement is in consideration of EPA guidance in AP-42, Section 7.1(11/19), Subsection

DEQ will no longer accept breathing and working emission calculations which are based on a condensate/oil-to-water ratio. This guidance does not apply to produced water tank flashing emissions or produced water tank truck loadout emissions. You may submit alternative emissions calculations for working and breathing losses with a technical justification and supporting documentation for a case-by-case approval.

Effluent Water Separator Guidance
AQD has developed a new guidance to assist the Oil and Gas industry with regard to the Effluent Water Separator standards found at OAC 252:100-37-37. This guidance is intended to assist industry in determining if a storage vessel qualifies as a vessel operating as an effluent water separator or if the vessel is simply a storage tank which may be subject to any other applicable requirements under OAC 252:100-37.
Oil and Gas Representative Sample Guidance
AQD has developed a new guidance document and flowchart to streamline the review and acceptance of representative samples used for calculating emissions for Air Quality oil and gas facility permit applications. The guidance affects all permit applications submitted on or after March 15, 2021. DEQ Form #100-702 is now required in addition to current application forms to demonstrate the selected sample satisfies the criteria specified in the guidance.

May 28, 2021: AQD has updated form 100-702 to make it more clear and incorporate instructions to assist the regulated industry. In addition, AQD is posting an initial set of Questions and Answers to assist in addressing recent questions that have arisen through the initial implementation.

AQD operates a dual permitting system — construction permits and operating permits — to control major and minor sources of air pollution.

  • A construction permit application is required before a new source is constructed or an existing source is modified.
  • AQD issues the construction permit after it is determined the source is designed to meet applicable rules and pre-construction requirements.
  • An operating permit is issued after construction is completed and demonstration is made that the source is capable of meeting applicable emissions limitations and air pollution control requirements.

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Web application for Air Quality permit application submittal and management

GovOnline Reference Guide – Version 2.0 April 18, 2019

E-Permitting Helpdesk (email)

Permit Guidance

Policy and guidance documents to aid in application submittal

🖩 Storage Tank Emissions Calculation Tool – for fixed roof and horizontal organic liquid storage tanks

General Permits & Permits-by-Rule

Streamlined permitting mechanisms for certain common industry categories that have similar operations, emissions, and regulatory applicability

Forms & Applications

Forms are grouped by industry sector

Public Participation & Issued Permits

Draft Permits for Public Participation

Air Permits Open for Public Petition

Permit Application Status

Issued PSD and ACI Permits

Permits issued over the past year


Contact the Air Permits Division

405-702-4100 (ask for Permitting Assistance)

Mailing Address

Email: Contact Richard Kienlen / Phillip Fielder

Go to our Contacts page for specific questions on air permit issues