Do you need a license to do HVAC work in North Dakota?

No. North Dakota does not require a statewide HVAC contractor license, though local jurisdictions may have their own rules.

How much does an HVAC license cost in North Dakota?

No statewide HVAC trade fee. State contractor license fees by class (Secretary of State): initial application $450 (Class A), $300 (Class B), $225 (Class C), $100 (Class D); annual renewal $90, $60, $45, $30 respectively. Local HVAC license fees, where required, are set by the city or county.

How often do you renew an HVAC license in North Dakota?

Annual — the state contractor license renews on or before March 1 each year (projects exceeding $50,000 are listed at renewal).

Does a North Dakota HVAC license transfer to other states?

No reciprocity is published for the state contractor license; confirm out-of-state recognition for any local HVAC license with the issuing city or county.

How to Get an HVAC License in North Dakota (2026 Guide)

North Dakota does not issue a standalone HVAC or mechanical trade license. Instead, a state-level contractor license from the Secretary of State is required for nearly all construction projects valued at $4,000 or more, and any HVAC-specific licensing is handled locally by individual cities and counties. This guide covers the state contractor license in detail and explains how to confirm the local requirements that may apply where you work.

Do You Need a Contractor License to Work in North Dakota?

A state-level contractor license is required for any construction project with a total contract price of $4,000 or more. This requirement is managed by the North Dakota Secretary of State and applies to construction work generally; the Secretary of State notes that specialized trade licenses and permits are separate from the contractor license it issues.

There is no dedicated statewide HVAC license. Where a city or county requires its own HVAC or mechanical license, you would hold that local credential in addition to the state contractor license. Always verify trade-licensing rules with the local building department before beginning a project.

North Dakota General Contractor License: State-Level Requirements

The North Dakota Secretary of State issues the mandatory general contractor license for all construction work exceeding $4,000. This license is categorized into four classes based on the maximum value of projects you are permitted to undertake.

Who Needs a General Contractor License?

Anyone who constructs, alters, repairs, adds to, subtracts from, or improves any building, highway, road, or other structure for a total project cost of $4,000 or more must hold a North Dakota contractor license. This includes subcontractors and individuals working in specialized trades like HVAC.

General Contractor License Classes and Tiers

The state license is divided into four distinct classes based on the total value of the projects you can legally contract for.

Class A: For projects valued over $500,000
Class B: For projects valued up to $500,000
Class C: For projects valued up to $300,000
Class D: For projects valued up to $100,000

Steps to Get a North Dakota General Contractor License

Follow these steps to apply for your general contractor license with the North Dakota Secretary of State.

Determine Your License Class: Select the appropriate license class (A, B, C, or D) based on the largest project value you anticipate bidding on.
Register Your Business: If you plan to operate as an LLC, corporation, or other formal business entity, you must first register your business with the North Dakota Secretary of State.
Obtain a Federal EIN: Secure a Federal Employer Identification Number (EIN) from the IRS if your business structure requires it.
Secure Required Insurance: You must provide proof of insurance to be licensed.
- General Liability Insurance: A certificate of liability insurance is mandatory to be licensed. The Secretary of State does not publish a specific minimum coverage amount on the contractor licensing page — confirm the current requirement with the Secretary of State.
- Workers' Compensation Insurance: If you have employees residing in North Dakota, you must provide proof of an active workers' compensation policy through North Dakota Workforce Safety & Insurance (WSI).
Complete the Contractor License Application: Fill out the "Contractor's License Application" form provided by the Secretary of State.
Pay Application Fees: Submit the required, non-refundable application fee along with your paperwork.
Submit All Documentation: Mail or hand-deliver your completed application, proof of insurance, and payment to the North Dakota Secretary of State's office.

North Dakota General Contractor License Fees

Fees for the state-level contractor license are based on the class you apply for and must be renewed annually.

Initial Application Fee: Class A is $450, Class B is $300, Class C is $225, and Class D is $100.
Annual Renewal Fee: Class A renewal is $90, Class B is $60, Class C is $45, and Class D is $30.

North Dakota HVAC Licensing: Municipal Requirements

North Dakota does not issue a statewide license specifically for HVAC work. Where a trade license is required for HVAC professionals, it is set at the city or county level — larger cities such as Fargo and Bismarck administer their own building-inspections and contractor-licensing programs.

EPA Section 608 Certification for HVAC Technicians

All HVAC technicians who maintain, service, repair, or dispose of equipment that could release refrigerants into the atmosphere must obtain EPA Section 608 certification. This is a mandatory federal requirement, separate from any state or local licensing.

There are four types of EPA certification:

Type I: For small appliances.
Type II: For high-pressure appliances.
Type III: For low-pressure appliances.
Universal: For all types of appliances.

Certification is obtained by passing a federally authorized exam administered by an EPA-approved certifying organization.

North Dakota Contractor License Reciprocity

The Secretary of State's contractor-licensing page does not publish a reciprocity agreement for the state contractor license, so plan to apply directly and meet North Dakota's requirements — including a North Dakota certificate of liability insurance and, if you have employees residing in the state, WSI workers' compensation coverage. For any local HVAC license, confirm reciprocity or out-of-state recognition with the issuing city or county, as those rules are set locally.

Renewing Your North Dakota Contractor License

The state contractor license is renewed annually with the Secretary of State, on or before March 1 each year. To renew, submit the renewal application, pay the class fee, provide a current certificate of liability insurance, and list any projects that exceeded $50,000. The Secretary of State does not list a continuing-education requirement for the state contractor license.

Renewal cycles, fees, and any CE requirements for local HVAC licenses are set by each city or county — confirm them with the issuing building-inspections department.

Frequently Asked Questions

What are the requirements for HVAC licensure in North Dakota?

North Dakota does not have a statewide HVAC license. A state contractor license is required for any construction project of $4,000 or more, and any HVAC-specific licensing is set locally by the city or county where you work — confirm those requirements with the local building-inspections department.

What is a Class A, B, C, or D contractor license in North Dakota?

These are the four tiers for the state-level contractor license, based on the maximum value of a project you can undertake. Class D is for projects up to $100,000, Class C up to $300,000, Class B up to $500,000, and Class A is for projects over $500,000.

What does the North Dakota state contractor license cost?

Initial application fees by class are $450 (Class A), $300 (Class B), $225 (Class C), and $100 (Class D). Annual renewal fees are $90, $60, $45, and $30 respectively.

Is there an exam for the North Dakota state contractor license?

The Secretary of State's listed steps for the state contractor license are based on your application, proof of insurance, and fee payment — they do not include a state exam. Confirm the current requirements with the Secretary of State, and note that any local HVAC license may carry its own exam.

Is EPA Section 608 certification required in North Dakota?

Yes, any technician in North Dakota who works with refrigerants must have the appropriate EPA Section 608 certification. This is a federal law and is required in addition to any state or local license.

Is workers' compensation insurance required for contractors in North Dakota?

Yes — if you have employees residing in North Dakota, you must carry workers' compensation coverage through North Dakota Workforce Safety & Insurance (WSI) to obtain and maintain a state contractor license.