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Air Quality Publications

Note that the AQ webpages for each of these topics contain valuable context for the documents and links to the appropriate webpage can be found at the top of each section when the documents sections are toggled open.

Air Quality Policy Memos

Rules, Regulations & Policies Webpage

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Title

Rev. Date

Topic
Aerial Application of Pesticide 26 August 2025 Miscellaneous
Air Dispersion Modeling for Emergency Engines / Flares 06 October 2014 Modeling
Compressor Engines & Glycol Dehydration Units (Rescindment) 18 December 2023 Modeling
Criteria Pollutant Modeling Requirements for a Permit to Construct 06 October 2014 Modeling
Electric Compressor Policy (Rescindment) 21 October 2024 Permitting
Emission Testing Guideline 07 February 2020 Compliance
Policy for the Control of Hazardous Air Pollutant (HAP) Emissions in ND (Air Toxics Policy) (Rescindment) 18 December 2023 Modeling
Storage Vessel Guidance (Rescindment) 21 October 2024 Oil &Gas
Title V Permit to Operate 22 June 2010 Permitting
General Information Concerning the Air Pollution Control Permit Fee System 01 September 2012 Permitting
Asphalt Change of Status Notifications 11 March 2021 Compliance
High Efficiency Program Specifically Applies to Flares (Steffes, LLC) For Midstream Facilities 15 March 2021 Oil &Gas
High Efficiency Program Specifically Applies to Flares (Steffes, LLC) For Upstream Production Facilities 15 March 2021 Oil &Gas
High Efficiency Program Specifically Applies to Combustors For Upstream Production Facilities 18 March 2021 Oil &Gas
High Efficiency Program Specifically Applies to Flares (Steffes, LLC) For Upstream Production Facilities 13 January 2022 Oil &Gas
Testing Requirements for Non-Emergency Engines (RICE) Located at Minor Source Oil and Gas Facilities 09 June 2021 Oil &Gas

Ambient Monitoring Reports

Air Quality Monitoring Webpage

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Report
Ambient Monitoring Report for 2025 and Data Summary for 20241  PDF
Ambient Monitoring Report for 2024 and Data Summary for 20231  PDF
1 Now a combined document of the Ambient Monitoring Report and the Ambient Monitoring Network Plan.

Ambient Monitoring Data

Air Quality Monitoring Webpage

Ambient Data can be accessed through EPA's Air Quality System (AQS) or EPA's GIS Server .

Annual Emissions Inventory Reports

Reporting Webpage

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Regional Haze

Regional Haze Webpage

Volkswagen Settlement

Volkswagen Settlement Webpage

Title

Date
Modified Final Environmental Trust Agreement 2020 May 19

Last Updated: 1/8/2024

Department of Environmental Quality
4201 Normandy Street
Bismarck, ND 58503-1324
 P: 701-328-5150
 F: 701-328-5200
 E: deq@nd.gov
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Accessibility Icon We are committed to ensuring our website complies with the Americans with Disabilities Act (ADA) and applicable web accessibility standards. We are actively working to improve the accessibility and usability of our online content. If you experience difficulty accessing any part of this website or require an accommodation, please contact us at DEQ@nd.gov.