HVAC Contractor License in North Dakota: Requirements, Qualifier, Bond and Exams
North Dakota issues no HVAC-specific contractor license — but it does license the business.
Anyone acting as a contractor when the cost, value or price per job exceeds $4,000, HVAC firms included, must hold a North Dakota Secretary of State contractor license: four classes by single-project value, no state surety bond, and renewal on or before March 1 each year.
The trade license itself is local — cities issue mechanical and fuel gas licenses, and Fargo proctors the State of North Dakota Reciprocity Exams behind them.
Verify before you rely on this
At a glance
Yes — but general, not HVAC-specific: anyone acting as a contractor when the cost, value or price per job exceeds $4,000, HVAC firms included, needs the Secretary of State contractor license.
North Dakota issues no HVAC trade license; the trade layer is city-issued.
The North Dakota Secretary of State issues the contractor license; its FirstStop search lists registered contractors.
Mechanical and fuel gas trade licenses are issued by individual cities.
Four classes by single-project value: Class A unlimited, Class B up to $500,000, Class C up to $300,000, Class D up to $100,000.
No state qualifier rule found in our review of the statute: the applicant — age eighteen or older — files an application under oath stating their experience and qualifications as a contractor.
Person-specific trade credentials are city licenses.
None for the Secretary of State license as far as our review of the statute goes — no trade exam and no business-and-law exam.
The HVAC exams our research verified are city exams: Fargo proctors the State of North Dakota Reciprocity Exams.
No state surety bond — the statute's bond section was repealed in 1995.
Applicants file a certificate of liability insurance naming the Secretary of State as certificate holder, plus Workforce Safety & Insurance proof if they have North Dakota employees.
Statutory fees: $450 (A), $300 (B), $225 (C), $100 (D) initially; renewals of $90, $60, $45 or $30, due on or before March 1 each year.
The Secretary of State may charge fees of its own — confirm the total before you pay.
Not established for the contractor license: no interstate agreement appears in the sources we read — ask the Secretary of State.
The HVAC reciprocity our research found is exam reciprocity among participating North Dakota jurisdictions.
The North Dakota HVAC license ladder
- Mechanical, Fuel Gas, or Dual license (city-issued)Other
The trade license layer: issued by individual cities, one per jurisdiction where you work, with the State of North Dakota Reciprocity Exams Fargo proctors behind it.
These licenses credential the people who do the work — the state issues none of them.
- Secretary of State Contractor License (Class A–D)Contractor
The state license an HVAC business meets: required once the cost, value or price per job exceeds $4,000, in four classes by single-project value.
It is a general contractor license covering HVAC firms, not an HVAC trade license.
Does North Dakota license HVAC contractors statewide, or only locally?
Both — in two layers that do different jobs.
The state layer is general: North Dakota requires a Secretary of State contractor license of anyone acting as a contractor when the cost, value or price per job exceeds $4,000, and the statute's own words make the trigger per job.
That license is a general license covering HVAC firms, not a trade exam license — North Dakota issues no HVAC-specific trade license.
The trade layer is local: 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.
An HVAC business therefore runs on two tracks — the state contractor license once a job passes $4,000, and a city trade license in each jurisdiction where the mechanical work happens.
“A person may not engage in the business nor act in the capacity of a contractor within this state when the cost, value, or price per job exceeds the sum of four thousand dollars”
Which agency issues the license, and what are the classes?
The issuing agency is the North Dakota Secretary of State, and its classes are about project size, not trade skill.
Four classes of contractor license exist, set by the value of a single project: Class A unlimited, Class B up to $500,000, Class C up to $300,000 and Class D up to $100,000.
Pick the class whose single-project ceiling covers the largest job you will take on — Class A has no ceiling, and B, C and D stop at the values above.
None of the four classes is an HVAC designation: the license covers HVAC firms and other contractors alike.
To check whether a contractor is registered, the Secretary of State's FirstStop search covers registered contractors.
“Four classes of licenses may be issued under this chapter, which must be designated as class A, B, C, and D licenses.”
Who can be the qualifier, and what experience do they need?
For the state contractor license, our review of the statute's application section found no qualifier rule — no qualifier or master-of-record named on the license.
What the statute asks for is narrower: an applicant who is eighteen years of age or older submits, on forms the registrar prescribes, an application under oath containing a statement of the applicant's experience and qualifications as a contractor.
The experience the state asks about is the applicant's own sworn statement, not a named individual's trade credential.
The experience rules our research found live at the city layer, on the individual mechanical and fuel gas licenses a crew's license-holders carry — Fargo's hour requirements are summarized in the local licensing section below.
Which person must hold which city license before an HVAC firm can contract there is a city question; our research verified only Fargo's exam route, so ask each city where you plan to work.
“an applicant who is eighteen years of age or older shall submit, on forms the registrar prescribes, an application under oath containing a statement of the applicant's experience and qualifications as a contractor.”
Which exams must be passed: trade, and business and law?
None for the business's state license, as far as the statute goes: our review of the application section found no trade exam and no business-and-law exam attached to the Secretary of State contractor license.
The application's sworn statement of experience and qualifications is the closest thing to a test the statute sets.
The exams our research found in North Dakota HVAC are city exams for individuals: the journeyman mechanical, journeyman fuel gas and matching master exams, run under the State of North Dakota Reciprocity Exams the City of Fargo proctors — open book, four hours each, and from January 1, 2026 based solely on the 2024 International Mechanical Code and the 2024 International Fuel Gas Code.
Those exams credential the license-holder, not the contracting business.
“The City of Fargo proctors the State of North Dakota Reciprocity Exams for both Master and Journeyman HVAC licenses.”
What bond and insurance are required?
No state surety bond: the contractor-bond section of the statute was repealed in 1995, so the Secretary of State license carries no bond requirement as the chapter reads today.
What applicants file instead is a certificate of liability insurance naming the Secretary of State as certificate holder, and — if the business has North Dakota employees — proof of Workforce Safety & Insurance coverage.
The statute chapter our research read names no minimum liability amounts, so coverage levels are a question for your insurer and the Secretary of State rather than a number attached to the license class.
Any bond a customer or general contractor asks for on a job is separate from the state license, which sets none.
What does it cost, and how often is it renewed?
The statute sets the fee schedule by class: $450 for Class A, $300 for B, $225 for C and $100 for D when the license is first issued, with annual renewals of $90, $60, $45 and $30 respectively.
Treat those as the statutory fees rather than the whole bill — the Secretary of State may charge fees of its own, so confirm the current total on the SOS contractors page before you apply.
Renewal runs on a contractor year: the license must be renewed on or before March 1 of each year, and the certificate of liability insurance naming the Secretary of State as certificate holder goes with it.
Continuing education is not established in our research for the contractor license — ask the Secretary of State before you renew.
“If you are a licensed contractor, you must renew your license on or before March 1 of each year.”
Does North Dakota have reciprocity with other states?
For the contractor license, no interstate agreement appears in the sources we read, so an out-of-state license is a question for the Secretary of State, not an assumption to bid on.
The word reciprocity does mean something specific in North Dakota HVAC, but the arrangement carrying the name is not interstate — the HVAC reciprocity our research found is exam reciprocity among participating North Dakota jurisdictions, run through the State of North Dakota Reciprocity Exams Fargo proctors.
And even that stops at the exam: the license itself is still issued city by city, jurisdiction by jurisdiction.
“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.”
What happens if your qualifier leaves?
On the state license, our review found no qualifier to lose: no qualifier-of-record or master-of-record sits on the Secretary of State contractor license, so on that reading, a person's departure does not by itself suspend the state credential the way it can where a license is tied to one named individual.
What the departure takes with it is the person's own city credential: the journeyman and master mechanical and fuel gas licenses are individual credentials, and a mechanical, fuel gas, or dual license must be obtained in each jurisdiction where you work.
Whether a city also ties an HVAC firm's right to contract to a license-holder, our research did not verify — a city may, and how fast a replacement must be in place is likewise not established in our research for any North Dakota city.
Ask the building or licensing department where you work before the departure, not after.
Who licenses HVAC contracting in North Dakota cities?
Cities license the trade, and Fargo is the city our research verified from its own pages.
Fargo proctors the State of North Dakota Reciprocity Exams for journeyman and master mechanical and fuel gas licenses; a passed exam is recognized by all participating North Dakota jurisdictions, but the license is still issued city by city.
The hour requirements the research verified sit behind those exams: Fargo's journeyman exams require proof of at least 6,000 hours of practical experience, with education counting for at most half, and the master exams require 6,000 hours of journeyman experience plus 4,000 hours practical — 10,000 in total.
Fargo's application route is online: after receiving exam results, the applicant applies for the license at Permits.FargoND.gov, and the list of people who passed the reciprocity exams is published by the North Dakota Building Official Association.
Our research did not verify the mechanical licensing rules of Bismarck, Minot or Grand Forks from city sources, so the building or inspections department where the work will be done is the authority on what it requires of an HVAC contractor.
What This Page Does, and Doesn’t, Cover
This page summarizes the North Dakota board pages, statutes, rules and other sources listed below, as read for this state-by-state HVAC contractor licensing series, current as of September 2026.
It is not a substitute for the instructions the North Dakota Secretary of State (contractor licensing) publishes.
For the rest of the picture in North Dakota, see plumbing contractor licensing in North Dakota and HVAC licensing in North Dakota.
Frequently Asked Questions
Does an HVAC company need a license in North Dakota?
Two kinds, depending on the job and the city.
The state requires a Secretary of State contractor license of anyone acting as a contractor when the cost, value or price per job exceeds $4,000 — HVAC firms included — in four classes by single-project value.
Separately, the mechanical and fuel gas licenses that cover the trade work are issued city by city: Fargo says a mechanical, fuel gas, or dual license must be obtained in each jurisdiction where you work.
Confirm both with the Secretary of State and the city before you bid.
Is the North Dakota contractor license an HVAC license?
No. The Secretary of State contractor license is a general license covering HVAC firms and other contractors alike — it is not a trade exam license.
North Dakota issues no HVAC-specific trade license at the state level; the mechanical and fuel gas licenses behind the actual work are city credentials.
That is why the page separates the state layer, which turns on job value, from the city layer, which turns on the work itself.
Does the North Dakota contractor license require an exam?
Our review of the statute's application section found no exam — no trade exam and no business-and-law exam.
An applicant who is eighteen or older files an application under oath containing a statement of the applicant's experience and qualifications as a contractor.
The HVAC exams in our research are city exams: Fargo proctors the State of North Dakota Reciprocity Exams for journeyman and master mechanical and fuel gas licenses, which credential individuals, not the contracting business.
Do HVAC technicians need a license or certification in North Dakota?
North Dakota issues no state HVAC license for technicians — mechanical and fuel gas licenses are city credentials, issued jurisdiction by jurisdiction.
Federal law applies everywhere regardless: 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 EPA 608 certification.
Can I use an out-of-state HVAC contractor license in North Dakota?
No interstate agreement recognizing another state's contractor license appears in the sources we read, so ask the Secretary of State before you rely on an out-of-state credential.
The HVAC reciprocity our research found is a different thing — exam reciprocity among participating North Dakota jurisdictions, run through the exams Fargo proctors — and even there the license itself must still be obtained in each jurisdiction where you work.
More North Dakota Resources
Sources
- North Dakota Century Code chapter 43-07 (contractors) (retrieved 2026-09-29)
- North Dakota Secretary of State — contractors licensing and registration (retrieved 2026-09-29)
- City of Fargo Inspections — HVAC reciprocity exams (retrieved 2026-09-29)
- 40 CFR 82.161 — EPA-approved technician certification requirement (eCFR) (retrieved 2026-09-29)
Sourced from the documents listed above.
Verified September 2026.
This is career information, not legal advice.
Confirm current rules with the North Dakota Secretary of State (contractor licensing).