North Dakota to Oklahoma: master HVAC technician license reciprocity
North Dakota does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Oklahoma's standard path for out-of-state applicants.
Your origin state does not issue a statewide license at this level, so there is no license to transfer. The destination's standard out-of-state path is shown; expect to meet it in full.
Reference only, not legal advice. Rules change; confirm with the licensing board before you apply. Full disclaimer.
Out-of-state master HVAC or mechanical contractor (all states; no published reciprocity partners)
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
No state has a published mechanical contractor reciprocity agreement with Oklahoma, so every out-of-state master HVAC technician or mechanical contractor uses the same route. Under OAC 158:50-9-4.1 an applicant from a state without a reciprocal agreement may request exam equivalency; if the Board has previously approved that jurisdiction's exam, the technical trade portion of the Oklahoma contractor exam is waived on a certified letter showing current good standing, the license category, a 70%+ exam score and no pending discipline, but the Mechanical Business and Law portion must still be passed. CIB does not publish the approved jurisdictions. Otherwise the applicant files the Application for Mechanical Examination with notarized experience affidavits and a copy of the out-of-state license, documents four years of verifiable experience in the category, pays $330, and must pass both portions of the contractor exam through PSI within three years of approval. To activate the license the contractor files a $5,000 bond and $50,000 general liability insurance with CIB; a contractor employed by a single business or public entity may instead file that employer's affidavit. Federal EPA Section 608 certification is required separately to handle refrigerants.
Even where a written contractor reciprocity agreement exists, OAC 158:50-9-6(e) grants only a journeyman license by reciprocity and requires the Oklahoma Business and Law portion before the contractor license issues; since no mechanical agreement is published, no agreement rows are recorded. Some third-party sites claim contractor reciprocity with Texas, Arkansas, Kansas or New Mexico, but no CIB page lists such an agreement.
At a glance
- Trade exam
- Required
- Law / code exam
- Required
- Out-of-state hours
- Count toward eligibility
What you must already have
- You must document at least 8,000 hours of qualifying work experience.Journeyman requirement of three years plus one additional year of verifiable experience in the mechanical trade, at 2,000 hours per year (OAC 158:50-9-1(b)(2)).
- Your North Dakota license must be active and in good standing.
- You must have passed a licensing exam in North Dakota that the destination considers comparable.
What you'll do to get licensed in Oklahoma
- 1Application fee. Pay the application fee ($30). Contractor application fee, non-refundable (OAC 158:50-9-2(b)).
- 2License fee. Pay the license or certificate fee ($300). Initial contractor license fee, submitted with the application; annual renewal $200.
- 3Trade exam. Pass the destination's trade exam. Technical trade portion of the Oklahoma HVACR Contractor exam (Unlimited or Limited) administered by PSI, 70% to pass; waived only under approved exam equivalency.
- 4Law / code exam. Pass a law, rules, or code exam. Oklahoma Mechanical Business and Law portion of the contractor exam (PSI), 70% to pass; never waived, including for reciprocity applicants.
- 5Exam fee. Pay the exam fee ($184). PSI fee of $92 per examination portion (two portions), non-refundable.
- 6Surety bond. Post a surety bond ($5,000). Continuous $5,000 corporate surety bond payable to the Oklahoma Construction Industries Board, filed before the license is activated (OAC 158:50-5-3(a)).
- 7Insurance. Carry the required insurance ($50,000). Commercial general liability insurance of at least $50,000 with CIB named as certificate holder (OAC 158:50-5-3(b)).
- 8Other. Compliance with workers' compensation insurance laws; the licensed contractor must be a permanent employee, owner, partner or officer of the mechanical firm responsible for its work.
- 9Other. Hold EPA Section 608 technician certification to handle refrigerant; federal law requires it, but it is not a condition of this state license (if applicable).
Published fees on this path total $514, excluding exam-vendor fees, bonds, and insurance.
What you'll need to buy or arrange
Exam preparation
Most boards contract PSI, Prov, or ICC for exams. Check which code edition the exam is written to before buying a prep course.
- Trade exam
- Law / code exam
- Exam fee · $184
- Other · if applicable
Surety bond
A license or contractor bond is bought from a surety, not the state. Price is a small percentage of the bond amount and depends on your credit.
- Surety bond · $5,000
Liability insurance
Some states require proof of general liability or workers' compensation coverage at licensing time.
- Insurance · $50,000
How Oklahoma licenses master HVAC technicians
Oklahoma master HVAC technician · “Mechanical Contractor (HVAC/R Unlimited or Limited)”
Statewide license
Issued by Oklahoma Construction Industries Board (CIB), Mechanical Division
Oklahoma has no 'master HVAC' license; its highest person-held HVAC credential is the Mechanical Contractor license, which CIB issues to an individual who passes the two-part contractor exam (technical trade and Mechanical Business and Law, 70% each, $92 per portion). This site maps the HVAC/R Unlimited (or Limited) Mechanical Contractor license to the master level. An applicant needs the journeyman qualifications plus one additional year, so four years (8,000 hours) of verifiable experience in the category, and pays $330 ($30 application plus $300 initial license). After passing, an inactive license issues until the contractor files a $5,000 corporate surety bond and a $50,000 commercial general liability certificate with CIB; an inactive contractor may work as a journeyman. Every mechanical firm must have a licensed contractor associated with and responsible for its work. OAC 158:50-9-6 lets CIB sign contractor reciprocity agreements, under which the applicant would still have to pass the Business and Law portion, but CIB publishes no mechanical partner states. Licenses renew annually ($200) with six hours of continuing education every 36 months.
Why North Dakota has nothing to transfer
North Dakota master HVAC technician
Licensed by cities and counties
North Dakota issues no master HVAC, mechanical or refrigeration license and has no state mechanical board. The only state-level credential an HVAC contractor needs is the Secretary of State contractor license, a business license for any job over $4,000 (Class D up to $100,000 for $100, up to Class A over $500,000 for $450) that requires liability insurance and workers' compensation verification but no trade exam. The master-level credential is the city master HVAC/mechanical installer license: Fargo's Master Heating license (10,000 hours including 6,000 as a journeyman, exam, $125 per year, liability insurance naming the city), Bismarck's Class A Master HVAC Installer (3,400 hours as a licensed journeyman, exam with 80% to pass, $125 per year), Grand Forks' Master Mechanical Installer (exam with 80%, $170 per year, $5,000 city bond, state contractor license) and Minot's Master Heating/HVAC Installer (board exam, $130 per year). A master exam passed in one of the testing member cities is accepted by the other North Dakota licensing members through the state mechanical reciprocity program, but each city issues its own license. No city recognizes an out-of-state master or contractor license outright; Bismarck's ordinance counts journeyman experience licensed by any governmental jurisdiction toward master exam eligibility, so an out-of-state master generally qualifies to sit a city master exam on the strength of documented experience and then licenses city by city. EPA Section 608 certification applies federally.
How local licensing works in North Dakota
How local licensing works. North Dakota has no state mechanical board; master-level HVAC licenses are issued by cities under their own ordinances, and a master exam passed in a testing member city (Burleigh County, Bismarck, Fargo, Grand Forks, Minot, Mandan or Dickinson) is accepted by the licensing member cities (also Jamestown, Valley City, Wahpeton, West Fargo and Williston) under the North Dakota Mechanical Reciprocity Administrative Rules, which require at least two years of practical experience beyond the journeyman level; the Reciprocity Eligibility Certificate is not a license. Every contractor whose job exceeds $4,000 also needs the Secretary of State contractor license (Class A-D, $450/$300/$225/$100, liability insurance and WSI verification, no exam).
Fargo. Master Heating license: at least 6,000 hours of journeyman experience plus 4,000 hours of practical experience (10,000 total) verified by employer letters; open-book master mechanical and master fuel gas exams on the 2024 IMC and IFGC ($125 per appointment); license $125 per year expiring December 31, renewed with a certificate of liability insurance naming the City of Fargo. Work in non-owner-occupied buildings must be done by a licensed and insured mechanical contractor.
Bismarck. Class A Master HVAC Installer: two years (3,400 hours) as a licensed journeyman 'licensed by the City or some other governmental jurisdiction', or a master license from a reciprocal jurisdiction; exam on the 2021 IMC and IFGC, $125, 80% to pass, offered monthly; $35 application fee and $125 annual fee expiring December 31; four hours of continuing education per year; a master may qualify only one shop or business at a time; three years (5,300 hours) as a licensed journeyman are needed for a Certificate of Reciprocity to other cities. Legacy licensees who tested before July 1, 2017 may work in Bismarck without retesting.
Grand Forks. Master Mechanical Installer: ND state contractor license, $5,000 license and permit bond payable to the City, certificate of insurance, written mechanical exam with 80% to pass, $170 per year.
Minot. Master HVAC Installer (Master Heating): Heating & Air Conditioning Board exam ($75 per attempt) or a reciprocal license from an approved city with proof of the passed test; $130 initial and $130 annual fee; state contractor license required; annual renewal without re-examination, re-examination after a lapse.
Out-of-state holders. No reciprocity or endorsement for other states' master or contractor licenses was found in any of these cities or in the state reciprocity rules. The practical route is to document journeyman-level hours from the origin state, pass the master exam in one testing member city, obtain the Secretary of State contractor license, and then apply for the local master license (with the local bond or insurance) in each city where work will be done.
- Fargo (Inspections Department, Master Heating)
- Bismarck (Building Inspections Division, Master HVAC Installer)
- Grand Forks (Building Safety, Master Mechanical Installer)
- Minot (Heating & Air Conditioning Board, Master HVAC Installer)
- North Dakota Secretary of State (state contractor license for jobs over $4,000)
Common questions
- Do I have to take the Oklahoma master HVAC technician exam if I'm licensed in North Dakota?
- Yes. Oklahoma requires the trade exam on this path, plus a law or code exam.
- What does it cost to get a Oklahoma master HVAC technician license from North Dakota?
- Published fees on this path total $514, not counting exam vendor fees or bonds.
- Do my North Dakota work hours count in Oklahoma?
- Yes. Documented out-of-state experience counts toward Oklahoma's eligibility requirements.
- Does it work the other way, from Oklahoma to North Dakota?
- Not necessarily. Reciprocity is directed. Going from Oklahoma to North Dakota, the mechanism is not applicable.
Sources
- EPA Section 608 Technician Certification Requirements · 40 CFR Part 82, Subpart F (Clean Air Act §608) · U.S. Environmental Protection Agency · Other · verified September 15, 2026
- Oklahoma CIB - Active Contractor Requirements (bond and insurance) · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma CIB - Mechanical Industry · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma CIB - Mechanical Application Information and Application for Mechanical Examination · Oklahoma Construction Industries Board · Form · verified September 23, 2026
- Oklahoma CIB - Mechanical Contractor · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma CIB - Mechanical Forms · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma Mechanical Licensing Act, 59 O.S. §§ 1850.1 et seq. · 59 O.S. §§ 1850.6, 1850.7, 1850.8, 1850.8A · Oklahoma Construction Industries Board · Statute · verified September 23, 2026
- OAC Title 158, Chapter 50 - Mechanical Industry Regulations (permanent rules effective 10/1/2020) · OAC 158:50-5-2, 158:50-5-3, 158:50-9-1, 158:50-9-2, 158:50-9-4.1, 158:50-9-6, 158:50-9-7 · Oklahoma Construction Industries Board · Admin Rule · verified September 23, 2026
- State of Oklahoma Electrical, Mechanical, Roofing and Plumbing Examinations Candidate Information Bulletin (PSI) · PSI Services for the Oklahoma Construction Industries Board · Form · verified September 23, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.