North Dakota to Maryland: master HVAC technician license reciprocity
North Dakota does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Maryland'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 without a reciprocal agreement
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
A master or contractor-level HVAC licensee from a state other than Delaware or Virginia must qualify for an original Maryland master license by examination; the Board's FAQ says reciprocal licensing is available only where an agreement exists. Bus. Reg. §9A-302(b) frames the 3-year requirement as employment under a Maryland journeyman-or-higher license under a master contractor, but §9A-302(g) lets the Board credit up to 6 years of HVACR work experience that does not meet that pattern when it provided comparable experience, and up to 3 years of formal study, so documented out-of-state experience can be submitted to PSI (which reviews eligibility for the Board) toward the master exam. The applicant passes the 100-question open-book master exam with 70% ($150), registers the license, pays the $94.50 license fee, and files a certificate of insurance ($300,000 general liability, $100,000 property damage) if they will contract work. Bus. Reg. §9A-305 authorizes the Board, by majority vote, to waive the exam for a licensee of any state that waives its exam for Maryland licensees to a similar extent, but the Board has published that waiver only for Delaware and Virginia. There is no separate law or business exam.
The Board's published materials do not say whether PSI accepts out-of-state journeyman-level experience toward the 3-year master requirement without a Maryland journeyman license; the PSI bulletin says an applicant who does not meet the standard master criteria may instead sit for a Master Restricted exam with 6 years of qualifying experience. The Board's fee page lists no separate application fee.
At a glance
- Trade exam
- Required
- Law / code exam
- Not required
- Out-of-state hours
- Count toward eligibility
What you must already have
- You must document at least 3 years of qualifying work experience.At least 3 years of active experience regularly and principally providing HVACR services under a journeyman-or-higher license under the direction and control of a master HVACR contractor, with at least 1,875 hours in the year before application (Bus. Reg. §9A-302(b)); the Board may credit up to 6 years of comparable work experience and up to 3 years of formal study under §9A-302(g).
What you'll do to get licensed in Maryland
- 1Trade exam. Pass the destination's trade exam. Maryland Master HVACR Contractor examination administered by PSI: 100 questions, 70% to pass, 240 minutes, open book (2012 International Mechanical Code, Modern Refrigeration and Air Conditioning, ACCA Manual J, 29 CFR 1926, ACCA Ductulator).
- 2Exam fee. Pay the exam fee ($150). PSI examination fee for the Master Contractor exam, valid for one attempt (Master Restricted specialties $50 each); a failed exam may be retaken after 30 days with a new fee.
- 3License fee. Pay the license or certificate fee ($94.50). Master license fee, nonrefundable, effective July 1, 2025 (master restricted $31.50 per area licensed, capped at three areas; limited $94.50).
- 4Insurance. Carry the required insurance. Certificate of insurance if the licensee will sign or approve HVACR contracts: general liability at least $300,000 and property damage at least $100,000 (combined at least $400,000), State Board of HVACR Contractors named as certificate holder (Bus. Reg. §9A-402).
- 5Other. 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 $244.50, 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
- Exam fee · $150
- Other · if applicable
Liability insurance
Some states require proof of general liability or workers' compensation coverage at licensing time.
- Insurance
How Maryland licenses master HVAC technicians
Maryland master HVAC technician · “Master HVACR Contractor”
Statewide license
Maryland's highest person-held HVACR credential is the Master HVACR Contractor license issued by the Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors; it authorizes installation and maintenance in all areas of HVACR work and is the license under which HVACR contracting is done. The Board also issues Master Restricted (one or more areas: forced air, hydronic, ventilation, air conditioning, refrigeration) and Limited Contractor (maintenance and repair only) licenses. A new master must have been licensed as a journeyman (or journeyman restricted, limited or master restricted) and regularly and principally employed providing HVACR services under a master for at least 3 years, with 1,875 hours in the year before applying, and pass the PSI master exam (100 questions, 70%, 240 minutes, open book, $150); the license fee is $94.50. A master, master restricted or limited licensee who signs or approves HVACR contracts must carry $300,000 general liability and $100,000 property damage insurance with the Board as certificate holder. The Board reciprocates only with Delaware and Virginia; licensees of those states who qualify are licensed without the Maryland exam.
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 Maryland master HVAC technician exam if I'm licensed in North Dakota?
- Yes. Maryland requires the trade exam on this path.
- What does it cost to get a Maryland master HVAC technician license from North Dakota?
- Published fees on this path total $244.50, not counting exam vendor fees or bonds.
- Do my North Dakota work hours count in Maryland?
- Yes. Documented out-of-state experience counts toward Maryland's eligibility requirements.
- Does it work the other way, from Maryland to North Dakota?
- Not necessarily. Reciprocity is directed. Going from Maryland 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
- Md. Code, Business Regulation §9A-101 - Definitions (HVACR licenses) · Md. Code, Bus. Reg. §9A-101 · Maryland General Assembly · Statute · verified September 15, 2026
- Md. Code, Business Regulation §9A-302 - Qualifications of applicants · Md. Code, Bus. Reg. §9A-302 · Maryland General Assembly · Statute · verified September 23, 2026
- Md. Code, Business Regulation §9A-305 - Waiver of examination for out-of-state licensees (reciprocity) · Md. Code, Bus. Reg. §9A-305 · Maryland General Assembly · Statute · verified September 15, 2026
- Md. Code, Business Regulation §9A-309 - Term and renewal of licenses · Md. Code, Bus. Reg. §9A-309 · Maryland General Assembly · Statute · verified September 23, 2026
- Md. Code, Business Regulation §9A-402 - Insurance requirement for contractor licensees · Md. Code, Bus. Reg. §9A-402 · Maryland General Assembly · Statute · verified September 15, 2026
- Maryland HVACR Board - Apply for an Original License (license categories) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 23, 2026
- Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (HVACR) - Home · Md. Code, Bus. Reg. Title 9A; COMAR 09.15 · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 23, 2026
- Maryland HVACR Board - Taking the Exams · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 23, 2026
- Maryland HVACR Board - Licensing Frequently Asked Questions · Maryland Department of Labor, Division of Occupational and Professional Licensing · Faq · verified September 23, 2026
- Maryland HVACR Board - Fees (COMAR fee schedule effective July 1, 2025) · COMAR 09.15.01.03 · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 23, 2026
- Maryland HVACR Board - Insurance Requirements · Md. Code, Bus. Reg. §9A-402 · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 23, 2026
- Maryland HVACR Board - Licensing Requirements (master, master restricted, limited, journeyman) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 23, 2026
- Maryland HVACR Board - Apply for a Reciprocal License · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026
- Maryland State Board of HVACR Contractors - Qualification Information Bulletin (PSI, updated 9/1/2024) · Maryland Department of Labor / PSI Services LLC · Other · verified September 23, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.