Requirements, license levels, and the issuing authority, sourced from North Dakota's official board.
The North Dakota contractor license is a value-based business credential rather than a trade competency credential: it tests insurance and registration rather than HVAC skill, and jobs at or below $4,000 fall outside it entirely. Because the state sets no HVAC competency standard, mechanical permitting and any technician-level requirement is handled by individual municipalities, so confirm locally before working in a given city. Electrical and plumbing work tied to an HVAC installation falls under the state electrical and plumbing boards, and refrigerant work requires federal EPA Section 608 certification.
| Requirements | No HVAC examination, experience or age requirement exists at state level. A contractor license is required when the cost, value or price of a job exceeds $4,000, and the class is set by contract value: Class A over $500,000 ($450 initial fee), Class B up to $500,000 ($300), Class C up to $300,000 ($225), Class D up to $100,000 ($100). The application requires a certificate of liability insurance in the same name as the requested license naming the North Dakota Secretary of State as certificate holder, and a current Workforce Safety and Insurance certificate of payment or letter of good standing where the applicant has employees residing in North Dakota. |
| Reciprocity | Not applicable, North Dakota issues no state-level HVAC, mechanical or refrigeration licence, so there is nothing to reciprocate and nothing is published. The State Plumbing Board's scope is plumber licensure, sewer and water licensure, water conditioning licensure and certified backflow assembly testers; HVAC, mechanical and refrigeration do not appear. The Secretary of State's contractor licence under N.D.C.C. chapter 43-07 is a general contractor licence classified by contract dollar value (Class A through D), not a trade-specific mechanical credential. Chapter 43-07 does contain a 'reciprocal agreements' clause at §43-07-22, but that provision authorises the Labor Commissioner to make reciprocal agreements with other states solely regarding enforcement of the North Dakota resident hiring preference on public contracts under §43-07-20, it has nothing to do with recognising another state's contractor or mechanical licence, and should not be read as licensing reciprocity. HVAC licensing in North Dakota is a municipal matter. |
| Renewal | Annually, on or before March 1. Renewal fees are $90 Class A, $60 Class B, $45 Class C and $30 Class D. No continuing education requirement is stated on the official page. |
| Notes | The North Dakota contractor license is a value-based business credential rather than a trade competency credential: it tests insurance and registration rather than HVAC skill, and jobs at or below $4,000 fall outside it entirely. Because the state sets no HVAC competency standard, mechanical permitting and any technician-level requirement is handled by individual municipalities, so confirm locally before working in a given city. Electrical and plumbing work tied to an HVAC installation falls under the state electrical and plumbing boards, and refrigerant work requires federal EPA Section 608 certification. |
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Sources: www.sos.nd.gov, www.ndplumbingboard.gov, ndlegis.gov. Always confirm current requirements with the issuing authority.
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