Does North Dakota Require an HVAC License? Who Licenses HVAC Work Instead

Not from the state.

North Dakota has no state-issued HVAC or mechanical worker license: HVAC (mechanical and fuel gas) licenses are issued by individual cities, and the City of Fargo says a mechanical, fuel gas, or dual license must be obtained in each jurisdiction where you work.

Which license you need depends on the city where the work is done.

At the state level, one rule that reaches HVAC firms is the Secretary of State contractor license, required of anyone acting as a contractor when the cost, value or price per job exceeds $4,000 — a general business license covering HVAC firms, not a trade license.

Federal law adds a requirement that applies regardless of city: under 40 CFR 82.161, any person who could reasonably be expected to violate the integrity of the refrigerant circuit while maintaining, servicing, repairing or disposing of appliances containing CFC/HCFC or non-exempt substitute refrigerants (such as HFCs) must pass an exam from an EPA-approved technician certification program — the federal EPA 608 certification.

North Dakota's HVAC license levels are city levels.

Fargo offers the journeyman mechanical, journeyman fuel gas, master mechanical and master fuel gas exams, and the license names in Fargo's process are the mechanical, fuel gas and dual licenses.

A passed exam is recognized by all participating North Dakota jurisdictions, but it is not a statewide license — a mechanical, fuel gas, or dual license must be obtained in each jurisdiction employed.

Above the worker rungs sits the Secretary of State contractor license, in four classes by single-project value: Class A unlimited, Class B up to $500,000, Class C up to $300,000 and Class D up to $100,000.

The state license is required once a job's cost, value or price exceeds $4,000 — a general license covering HVAC firms, not a trade exam license — and our review of the statute's application section found no trade exam attached to it: the application asks, under oath, for a statement of the applicant's experience and qualifications as a contractor.

Fargo's journeyman mechanical and journeyman fuel gas exams require proof of at least 6,000 hours of practical experience, and education can count for at most half of those hours.

The master exams require 6,000 hours of journeyman experience plus 4,000 hours practical — 10,000 total.

Exam fees are $40 per journeyman exam appointment and $125 per master exam appointment, with both trade exams on the same day counting as one appointment; the exam fee is separate from the license fee, which our research did not verify.

North Dakota sets no registration for HVAC apprentices — with no state HVAC license, there is no state rule requiring them to register.

For the business rung, the statute sets Secretary of State contractor license fees of $450 (Class A), $300 (B), $225 (C) or $100 (D) initially and renewals of $90, $60, $45 or $30 a year; the license runs on a contractor year ending March 1 and requires a certificate of liability insurance naming the Secretary of State as certificate holder — plus Workforce Safety & Insurance proof if the business has North Dakota employees.

There is no state surety bond requirement — the bond section was repealed in 1995.

The City of Fargo proctors the State of North Dakota Reciprocity Exams for both Master and Journeyman HVAC licenses.

There is a journeyman mechanical exam and a journeyman fuel gas exam, with matching master exams in each discipline.

Each exam is open book and allows four hours for completion, and from January 1, 2026 the exams are based solely on the 2024 International Mechanical Code and the 2024 International Fuel Gas Code.

Expect $40 per journeyman exam appointment and $125 per master exam appointment, with both trade exams on the same day counting as one appointment.

A failed exam requires a 30-day wait before retesting.

After receiving your exam results, you may apply for your license online at Permits.FargoND.gov — Fargo's application route.

Our research did not confirm a renewal cycle or continuing-education hours for city mechanical or fuel gas licenses, and there is no state HVAC license whose renewal rules would apply — ask the city that issues your license before you plan work around a renewal date.

The Secretary of State contractor license does renew on a fixed cycle: it runs on a contractor year ending March 1 and must be renewed on or before March 1 each year, with the statute's renewal fees of $90 (Class A), $60 (B), $45 (C) and $30 (D), and a certificate of liability insurance naming the Secretary of State as certificate holder.

North Dakota's HVAC reciprocity is exam reciprocity between its own cities: Fargo proctors the State of North Dakota Reciprocity Exams, and a successfully completed exam is valid in all participating jurisdictions within the state.

It stops there — a mechanical, fuel gas, or dual license must still be obtained in each jurisdiction employed.

As for licenses issued by other states: with no state HVAC license, our research found no state rule on accepting them, and what individual cities do with an out-of-state license was not established — ask the licensing office where you plan to work before you assume it counts for anything.

There is no statewide HVAC license lookup, because there is no state HVAC license to look up.

Two public records get close.

Fargo says the list of people who passed the State of North Dakota Reciprocity Exams is published by the North Dakota Building Official Association.

And for the business side, the North Dakota Secretary of State's FirstStop search covers registered contractors — the contractor license, not an individual trade license.

For a worker license, go to the city that issued it and ask its licensing office to confirm the mechanical, fuel gas or dual license.

Individual cities license mechanical and fuel gas work.

Fargo is the city our research verified from its own pages: it proctors the journeyman and master reciprocity exams and issues mechanical, fuel gas and dual licenses.

Our research did not verify the HVAC licensing rules of North Dakota's other cities, Bismarck and Minot included, from city sources — so the building or inspections department where the work will be done is the authority on whether you need a license there and which one.

What travels between cities is the exam, not the license: a passed State of North Dakota Reciprocity Exam is recognized by all participating jurisdictions, but you still hold a license in each city where you work.