Pipeline permitting in Minnesota
The Minnesota Public Utilities Commission oversees the permitting process for certain intrastate pipelines to ensure the safe and responsible transport of hazardous liquids and natural gas. This page outlines the types of pipelines under PUC jurisdiction and the various permitting processes.
Understanding PUC jurisdiction
The PUC has jurisdiction over the routing of:
- Hazardous Liquid Pipelines: Those with a nominal diameter of six inches or more.
- Natural Gas Pipelines: Those designed to operate at a pressure of more than 275 pounds per square inch (psi).
To learn more about the relevant statutes and rules, refer to the Office of the Revisor of Statutes:
- Minn. Stat. §216G
- Minn. Rules Chpt. 7852
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The PUC has jurisdiction over the routing of:
- Hazardous Liquid Pipelines: Those with a nominal diameter of six inches or more.
- Natural Gas Pipelines: Those designed to operate at a pressure of more than 275 pounds per square inch (psi).
To learn more about the relevant statutes and rules, refer to the Office of the Revisor of Statutes:
- Minn. Stat. §216G
- Minn. Rules Chpt. 7852

The Pipeline Permitting Process
Information Book approval
This process applies to smaller hazardous liquid pipelines that may not require a full permit from the PUC.
Information Book approval
- This process applies to smaller hazardous liquid pipelines that may not require a full permit from the PUC.
- When it applies: For pipelines less than six inches in nominal diameter and operating at pressures below 275 psi. While a full permit may not be required, applicants may still need to qualify for and obtain an Information Book approval.
- Applicant requirements: Applicants must adhere to the content and timing requirements specified in state statute.
- Permitting timeline: Typically 45 days.
- PUC's role: The Commission makes the final decision on the proposed action.
- Who's involved:
- Minnesota Public Utilities Commission
- Permit Applicant
Relevant statutes and rules: For detailed information, refer to the Office of the Revisor of Statutes:
Minn. Stat. 216G.03 to 216G.05

Partial Exemption process
Applicants who believe their pipeline project will have minimal impacts on people and the environment may request a partial exemption
Partial Exemption process
Applicants who believe their pipeline project will have minimal impacts on people and the environment may request a partial exemption from certain pipeline route selection rules.
- Permitting process:
- Request submission: The applicant submits a request for a partial exemption to the PUC.
- Commission review: The PUC decides whether to consider the partial exemption request.
- Public involvement: If the request is considered, the process begins with public notification, distribution of the application, a comment period, and public meetings in each affected county.
- Commission decision: After gathering all information, the Commission decides whether to grant the partial exemption.
- Permitting timeline: Typically within 90 days of application acceptance.
- PUC's role: The Commission reviews applications, helps build the official record, and Commissioners make the final decision on issuing a pipeline route permit.
- Who's involved:
- Minnesota Public Utilities Commission
- Permit Applicant
Relevant statutes and rules: For detailed information, refer to the Office of the Revisor of Statutes:
- Minn. Stat. 216G
- Minn. Rules 7852.0600-7852.0700
- Minn. Rules 7852.2000-7852.3000

Pipeline route permit
The standard process for pipeline projects anticipated to have significant environmental impacts.
Pipeline route permit
This is the standard process for pipeline projects anticipated to have significant environmental impacts.
- Permit Process:
- Application readiness: Once the PUC determines the application is ready for review, public meetings are organized in each county through which the pipeline would pass. These meetings gather public comments and consider alternative route proposals.
- Alternative route investigation: The Commission decides which alternative routes warrant further investigation. PUC staff then conduct an environmental review of both the applicant's proposed route and any identified alternatives.
- Public hearing: At least one public hearing is scheduled and overseen by an Administrative Law Judge (ALJ) from the Office of Administrative Hearings. During this hearing, the public can share thoughts and ask questions.
- ALJ Report: After the hearings, the ALJ prepares a detailed report titled "Findings of Fact, Conclusions of Law and Recommendation," which thoroughly reviews the entire process and collected information.
- Commission decision: Once the ALJ's report is filed in the official docket, the Commission examines the entire record. The Commission then holds a public agenda meeting to discuss the matter and make a final decision on whether to issue a permit for the project.
- Permitting timeline: Approximately nine months, though this may be extended for good cause.
- PUC's role: The Commission reviews applications, helps build the official record, and Commissioners make the final decision on issuing a pipeline route permit.
- Who's involved:
- Minnesota Public Utilities Commission
- Office of Administrative Hearings – Administrative Law Judge
- Permit applicant
Relevant statutes and rules: For detailed information, refer to the Office of the Revisor of Statutes:
- Minn. Stat. §216G
- Minn. Rules Chapter 7852
For information about Summit Carbon Solution's Otter Tail to Wilkin carbon dioxide pipeline, please go here

Get Involved
Members of the public are encouraged to provide comments on any matter before the PUC at any time. You can also send comments or contact the PUC about regulatory matters.
Our decision-making is better when we hear from Minnesotans like you. Public input is essential to a fair and reasonable decision making process. Learn more about the PUC's work and how to get involved by watching PUC videos.
The PUC maintains a list of Dockets currently accepting comments. Comments are added to the record and can make a difference in PUC decisions. To see what Dockets are currently open for comment, go here
Other Resources
Other resources regarding permitting, our process and more.
Certificate Of Need
Certain large electric generating facilities and large high-voltage transmission lines are required by law to obtain a certificate of need
Permit changes
The PUC has the authority to amend, revoke or transfer a permit for a large energy infrastructure project.
Permitting guidance
This page provides essential guidance documents and resources for project proposers navigating the energy infrastructure permitting process.
Landowner rights
If a utility company plans to build transmission lines on or near your property, understanding your rights as a landowner is essential.
Proposed Pipelines in the Permitting Process
Docket Number | Project Name | Description |
---|---|---|
G-11/GP-15-858 | Rochester Natural Gas Pipeline Project | Minnesota Energy Resources Corporation is proposing to install approximately 13.1 miles of new natural gas pipeline west and south of the city of Rochester in Olmsted County, Minnesota |
PPL-15-137 | Line 3 Pipeline Replacement | Enbridge Energy proposes to replace 337 miles of the Line 3 Pipeline in Minnesota. Line 3 originates in Canada, continues through North Dakota, enters Minnesota in Kittson County, and terminates in Superior, Wiscsonsin. |
GP-23-392 | Dooley's Renewable Natural Gas Pipeline | Dooley's Natural Gas II, LLC (Dooley's) is proposing to construct approximately 28 miles of 4-inch and 2-inch pipeline in Chippewa, Swift, and Kandiyohi Counties |
PPL-23-109 | Pipestone Pipeline Reroute Project | The Magellan Pipeline Company proposes to relocate approximately 0.74 miles of an existing petroleum pipeline in Pipestone County. |
23-43 | Heartland Corn Products Natural Gas Pipeline Project | Heartland Corn Products proposes to construct an approximately 7.78-mile long, 6.625-inch outside diameter natural gas pipeline in Sibley County, Minnesota. The pipeline will originate near 595th Avenue, north of Highway MN- 19 (west of the City of… |
22-422 | Otter Tail to Wilkin Carbon Dioxide Pipeline Project | Summit Carbon Solutions, LLC, proposes to construct about 30 miles of carbon dioxide pipeline through Otter Tail and Wilkin Counties. |
PPL-21-266 | Rochester Airport Pipeline Relocation Project | BP Midwest Product Pipelines Holding, LLC (BPMW) is proposing to reroute a section of pipeline near the Rochester International Airport in Olmsted County, Minnesota. |
PPL-20-872 | Pine Bend Pipeline Project | Petroleum Fuels Company (PFC) is proposing to construct a 5,600 foot long natural gas pipeline in Dakota County. The pipeline will transport natural gas from a processing facility near the Pine Bend landfill to an interconnection with the Northern… |
PL9/PPL-18-752 | Enbridge Energy, Limited Partnership: Fond du Lac Line 4 Project | Enbridge Energy, Limited Partnership has applied for a Pipeline Route Permit and Partial Exemption for the Fond du Lac Line 4 Project on the Fond du Lac Band of Lake Superior Chippewa Reservation. The Project will relocate approximately 10 miles of… |