HVAC License North Dakota: There Is No State License, Only a Statewide Exam and City-by-City Licenses (2026)

There is no North Dakota HVAC license. There is no state HVAC board, no state mechanical contractor license, no state journeyman or master mechanical credential, and no state agency that issues one.

What North Dakota has instead is a two-layer arrangement that no other state runs quite the same way: a statewide mechanical examination that any participating city can proctor and that every participating city honors, sitting underneath city-by-city licenses that you have to obtain separately in each jurisdiction where you work.

Pass once. License everywhere you operate, one city at a time.

The City of Fargo states the rule as directly as it can be stated: a successfully completed exam "is valid in all participating jurisdictions within the State of North Dakota. However, a mechanical, fuel gas, or dual license must be obtained in each jurisdiction employed."

That single sentence is the entire answer to "how do I get an HVAC license in North Dakota," and almost nothing else on the first page of search results says it.

The pages telling you otherwise are describing a state that does not exist

This needs saying plainly, because a contractor acting on the wrong information here will budget for a credential that cannot be applied for.

There is a page currently ranking on this exact query that asserts North Dakota's HVAC licensing "is administered at both the state and local levels, with the North Dakota State Plumbing Board and the State Electrical Board playing central roles," that "the primary statutory authority is the North Dakota State Plumbing Board, which oversees mechanical contractor registration," and that "a business cannot legally offer HVAC services without a master licensee on file with the relevant board."

Every one of those claims is wrong, and they are checkable in about four minutes.

The North Dakota State Plumbing Board publishes its own licensure pages. It licenses exactly three tracks — plumbers, sewer and water, and water conditioning — plus a certified backflow assembly tester list. There is no mechanical track. There is no HVAC track. There is no mechanical contractor registration. The Board does not oversee HVAC work and has never claimed to.

The North Dakota State Electrical Board licenses electrical work. It requires a license from anyone who undertakes "to plan, lay out, supervise, install, make additions, make alterations, or make repairs, in the installation of wiring, apparatus, or equipment for electric light, heat, or power." That covers the electrical connection to a furnace. It does not make the Electrical Board an HVAC authority.

And the claim about a "master licensee on file with the relevant board" describes a qualifier framework that does not exist at the state level in North Dakota at all. The one state credential a contracting business actually needs — the Secretary of State contractor license — names no qualifier, requires no master, and involves no trade exam. We come back to that below.

The same page also asserts an apprenticeship of "typically 4 years or approximately 8,000 hours" structured "through programs aligned with the North Dakota Workforce Development Council." The real numbers, published by the cities that actually issue these licenses, are 6,000 hours in Fargo and 7,600 hours in Bismarck, set by those cities, not by any council.

That page cites one reference: a federal Bureau of Labor Statistics occupational outlook page. It contains no North Dakota statute, no board, and no city ordinance.

This is worth flagging not to pick a fight but because it is a pattern. When a licensing page reads as a smooth, plausible, generic regulatory narrative with no fee schedule, no ordinance citation, and no named form, it is usually generated from a template that assumes every state works the same way. North Dakota does not work like every state. Check the board's own site. It takes minutes and it is the difference between a bid you can perform and a bid you cannot.

What you actually need, in order

Layer one: the Secretary of State contractor license, if the job exceeds $4,000.

This is the only statewide credential in the picture, and it is not an HVAC license — it is a general contractor license that applies to essentially all construction trades.

Under NDCC ch. 43-07, when the cost, value, or price of a job exceeds $4,000, the person doing the work must be licensed as a contractor in North Dakota. The Secretary of State is explicit that this reaches subcontractors, general contractors, public contractors, and nonresident contractors — a mechanical sub on a large project is squarely inside it.

The threshold applies to individual contracts, not cumulative work. Four separate $3,000 jobs do not aggregate into a licensing obligation; one $4,001 job does.

The license is graded by contract size, and the initial fees are:

• Class A — over $500,000 per job — $450
• Class B — up to $500,000 per job — $300
• Class C — up to $300,000 per job — $225
• Class D — up to $100,000 per job — $100

Renewal is due on or before March 1 each year, and the renewal fees are much lower: Class A $90, Class B $60, Class C $45, Class D $30. Renewal also requires listing every project, contract or subcontract completed in North Dakota during the preceding calendar year that exceeded $50,000, and certifying that payroll taxes, Workforce Safety and Insurance premiums, and unemployment insurance premiums have all been paid.

What the initial application requires is revealing. A certificate of liability insurance in the same name as the license, listing the North Dakota Secretary of State as certificate holder. Workforce Safety & Insurance verification — a current certificate of payment if you have employees residing in North Dakota, or a letter of good standing from WSI if you do not. A business registration with the Secretary of State. And a signed statement of your experience and qualifications as a contractor.

A signed statement. Not an exam, not verified hours, not a named master. North Dakota's state contractor license tests your insurance and your workers' comp standing, not your technical competence.

Layer two: the city mechanical license, wherever you actually work.

The competency test lives at the municipal level, and this is where the real requirements are.

Fargo and Bismarck do not agree on the numbers

Two cities, one state, the same trade — and materially different requirements. If you have only ever worked one North Dakota market, this will surprise you.

Fargo. The City of Fargo proctors the statewide mechanical examinations and offers four of them: journeyman mechanical, journeyman fuel gas, master mechanical, and master fuel gas.

• Journeyman experience: proof of at least 6,000 hours of practical experience.
• Master experience: proof of at least 6,000 hours of journeyman experience plus 4,000 hours of practical experience — 10,000 hours total.
• Journeyman exam fee: $40.00. Charged per exam appointment, so taking both journeyman exams the same day still costs $40 total; taking them on separate days costs $40 each.
• Master exam fee: $125.00, on the same per-appointment basis.
• Retest after failure: 30 days.
• Exams are by appointment on an individual basis.
• Exams are open book, four hours each, and cell phones are surrendered at the front desk.
• As of January 1, 2026, Fargo's exams are based solely on the 2024 code books — the 2024 International Mechanical Code and the 2024 International Fuel Gas Code. Fargo does not sell code books; you buy them yourself.

Fargo also accepts education for up to half of the journeyman hour requirement, evidenced by a certificate of education plus a degree audit report or transcript — but hands-on experience is still required for the other half.

Proof of hours has a specified format: a professional letter of qualifications on company letterhead, signed by an employer or a master, listing the type of work, the date range of employment, and the exact number of hours worked.

Bismarck. The City of Bismarck runs its own mechanical installer licensing through its Building Inspections Division, and the numbers are different.

• Journeyman experience: 4 years (7,600 hours) of verified work experience — or an education equivalent of up to 3,800 practical hours plus a minimum of 2 years (3,800 hours) of work experience.
• Master experience: 2 years (3,400 hours) of verified experience as a licensed journeyman to sit for the exam.
• All work experience must be completed under a Licensed Master Installer.
• Exam fee: $125.00 — one fee, both grades.
• Passing grades are published: Master 80%, Journeyman 75%.
• Retest after failure: 90 days.
• Applications for testing are due on the first business day of the month; exams are held on the third Thursday of the month at the City/County Building, 221 N 5th St. Check in at Building Inspections at 8:30 AM, testing begins at 9:00 AM, with a lunch break from 12:00 to 1:00 PM.
• The exam is built on the 2021 International Mechanical Code and the 2021 International Fuel Gas Code — and the City provides the books, along with calculators and writing tools, for use during the exam.
• The City names the municipalities its exam travels to: Grand Forks, Fargo, and Minot.
• The governing authority is Title 4-10 of the City of Bismarck Code of Ordinances.
• Bismarck does not publish an annual license fee schedule on its Mechanical Installers pages. Confirm the license fee with Building Inspections directly rather than relying on a third-party figure.

There is also a grandfather provision worth knowing if you are acquiring a Bismarck shop or hiring a long-tenured installer. Anyone who tested before July 1, 2017 is not required to retest and may continue working at their current class and discipline inside the City under a Mechanical Legacy license. But a Legacy holder who wants to work outside the City's jurisdiction, or change class or discipline, must sit the new exam. A veteran master installer on your payroll may therefore be fully licensed in Bismarck and completely unable to travel — which is exactly the kind of thing that surfaces after you have already bid the Grand Forks job.

Line the two cities up and the divergence is stark. Fargo wants 6,000 hours for a journeyman; Bismarck wants 7,600. Fargo's master requires 10,000 total hours; Bismarck's requires 3,400 as a licensed journeyman. Fargo charges $40 for a journeyman exam; Bismarck charges $125. Fargo lets you retest in 30 days; Bismarck makes you wait 90. Fargo tests by appointment; Bismarck tests once a month, on the third Thursday. Bismarck publishes cut scores; Fargo does not.

And they are not even testing the same code. Fargo moved to the 2024 IMC and 2024 IFGC on January 1, 2026 and expects you to buy your own books. Bismarck's exam is built on the 2021 IMC and 2021 IFGC and the City hands you the books at the door. Two cities in one state, three code years apart, on the same trade.

Bismarck adds one more wrinkle worth knowing, and it is the sharpest detail on this page. A master applicant needs 2 years and 3,400 hours as a licensed journeyman to write the exam, but 3 years and 5,300 hours to receive the certificate Bismarck issues that makes the credential portable to other participating North Dakota cities. Sitting the exam and making the credential travel inside the state are two different thresholds, 1,900 hours apart. Nothing on page one of the search results distinguishes them.

(To be clear about scope: everything on this page concerns movement between cities inside North Dakota. Licensing across state lines is a separate subject and is not covered here.)

All city fees, hour requirements, cut scores, and exam calendars are set by the individual municipalities and are subject to change. Verify with the city where you intend to work — Fargo Inspections at 701.241.1561, Bismarck Building Inspections at 701-355-1465, City/County Building, 221 N 5th St — before relying on them.

What the exam does not cover: EPA Section 608

Nothing above touches refrigerant. That is federal.

EPA Section 608 certification under the Clean Air Act is required for any technician who opens a system containing regulated refrigerant, and it is issued by EPA-approved certifying organizations, not by North Dakota, not by Fargo, and not by Bismarck. Type I, II, III, or Universal, depending on the equipment.

It is not a license and it does not substitute for one, and the reverse is equally true: a Fargo master mechanical license does not authorize you to recover refrigerant without 608. They are parallel requirements from different governments. We cover the distinction in EPA 608 Certification vs. an HVAC License.

Boilers, and the electrical boundary

Two adjacent scopes catch mechanical contractors in North Dakota.

Electrical. The North Dakota State Electrical Board licenses anyone who undertakes to install wiring, apparatus, or equipment for electric light, heat, or power. Setting a furnace is mechanical work; running the circuit and making up the connection is electrical work, and the Electrical Board's statutory language is broad. See How to Get an Electrician License in North Dakota for that ladder.

Hydronics. Heating work that involves potable water connections, backflow protection, or piping regulated as plumbing can pull the North Dakota State Plumbing Board into a job that looks purely mechanical on the drawings. Hooking a backflow preventer to the main water supply requires a plumbing license in North Dakota. See Plumbing License North Dakota for the plumbing ladder and where its scope lines fall.

What this means if you are staffing a North Dakota mechanical company

Put the two layers together and the practical picture is this.

Your company needs a Secretary of State contractor license once jobs exceed $4,000, and getting it turns on insurance and workers' comp standing rather than on anyone's credentials.

Your people need city mechanical licenses in every North Dakota city where they work, and those licenses turn on documented hours under a licensed master and a passed examination.

Which means the constraint on a North Dakota mechanical company is not the state filing. It is whether you have a licensed master installer on the payroll — because in Bismarck all qualifying experience must be completed under one, and in every participating city the master credential is what lets a company operate at full scope.

That person has to be a genuine employee doing genuine work. Every state that has examined the question has landed in the same place on that point, and arrangements that treat a license as a rentable asset are a compliance problem rather than a strategy — we lay out why in Is It Legal to Rent a Contractor License? and Contractor License vs. Business License.

North Dakota's version of this problem has a particular shape, because the state license and the trade competency sit in completely different places. We take that apart in North Dakota's Two-Track System.

Frequently asked questions

Does North Dakota require an HVAC license?

Not at the state level. North Dakota issues no state HVAC or mechanical trade license. Cities including Fargo, Bismarck, Grand Forks and Minot license mechanical installers locally, and a Secretary of State contractor license is separately required for any job exceeding $4,000 regardless of trade.

How many hours do I need for an HVAC journeyman license in North Dakota?

It depends on the city. Fargo requires 6,000 hours of practical experience. Bismarck requires 4 years and 7,600 hours of verified work experience, all completed under a Licensed Master Installer, with education able to substitute for up to 3,800 of those hours. There is no single statewide number, which is why generic guides that quote one are unreliable.

What is the passing score for the North Dakota HVAC exam?

Bismarck publishes 80% for master and 75% for journeyman. Fargo does not publish a cut score on its exam page. Verify with the city administering your exam.

Which code year is the North Dakota mechanical exam based on?

It depends on the city, and they differ. Fargo's exams have been based solely on the 2024 IMC and 2024 IFGC since January 1, 2026, and Fargo does not supply the books. Bismarck's exam is built on the 2021 IMC and 2021 IFGC, and the City provides the books, calculators and writing tools at the exam.

How much does an HVAC license cost in North Dakota?

Fargo: $40.00 per journeyman exam appointment, $125.00 per master exam appointment. Bismarck: $125.00 exam fee, payable on exam day. Bismarck does not publish its annual mechanical license fee on its Mechanical Installers pages, so confirm that figure with Building Inspections rather than trusting a third-party number. The Secretary of State contractor license runs $100 to $450 initially by class, with annual renewal of $30 to $90. All figures are set by the issuing city or the Secretary of State and are subject to change.

What does it cost to get an HVAC company fully licensed and operating across North Dakota?

The published fees above are the fixed, knowable part. The variable part is everything else: how many North Dakota cities you actually work in and therefore how many municipal licenses you carry, whether you have a licensed master installer on staff or need to bring one in, which Secretary of State class your contract sizes require, your liability insurance premium given your scope and history, and whether you have North Dakota-resident employees and therefore a Workforce Safety & Insurance obligation. Those swing the total far more than the exam fees do. A scoping conversation gets you a number that fits your situation — see Consultation Packages.

If I pass the exam in Fargo, can I work in Bismarck?

The examination result is honored across participating North Dakota jurisdictions, but the license is not. You must obtain a mechanical, fuel gas, or dual license in each jurisdiction where you are employed. Bismarck additionally requires 3 years and 5,300 hours as a licensed journeyman before it will issue the certificate that makes your credential portable to other participating cities, against 2 years and 3,400 hours to sit the exam.

Do I need EPA 608 certification in North Dakota?

Yes, if you handle regulated refrigerant. It is a federal requirement under the Clean Air Act, entirely separate from any North Dakota state or city license, and neither one substitutes for the other.

If you need a licensed master on the payroll

The structural takeaway for a mechanical contractor in North Dakota: the state will license your business on the strength of your insurance certificate, and then the cities will decide whether you can actually perform the work, based on whether a properly licensed person is doing it.

If your company needs a licensed master mechanical installer and does not have one, that is precisely the gap we fill. We place qualifying agents as full-time W-2 employees — not contractors, not name-on-a-form arrangements. See What Is a Qualifying Agent for how the role works, and Hire a Qualifying Agent to start a placement.

If you hold a North Dakota master mechanical license, see Become a Qualifying Agent.

Fees, hour requirements, cut scores, exam schedules, and code cycles on this page are set by the City of Fargo, the City of Bismarck, and the North Dakota Secretary of State and are subject to change. Verify current requirements with the issuing authority before acting on them. Last reviewed September 2026.