1. (1) Division to Designate H100 Qualifiers. An individual may act as H100 Qualifier under Subsection R156-55a-301g(3)(a) in one of two ways:

   1. (a) Grandfather Clause. An Interim H100 Qualifier as defined under Subsection R156-55a-102(9), may act as the qualifier for an H100 Contractor under Subsection R156-55a-301g(3)(a) until November 30, 2027.

      1. (i) Between March 1, 2026 and November 30, 2027, an Interim H100 Qualifier may petition the Division to become a regular H100 Qualifier by submitting proof that the individual is a Certified Natural Gas Technician under Subsections R156-55a-102(1) and Section R156-55a-308b, or is otherwise licensed to install, modify, maintain, clean, repair or replace gas piping, combustion air vents, exhaust venting system or derating of gas input for altitude of a residential or commercial gas appliances.
      2. (ii) End of Grandfathering Period. An H100 HVAC Contractor operating with an Interim Certified H100 Qualifier after November 30, 2027 that has not provided to the Division the documentation required under Subsection R156-55a-302g(1)(a) is engaged in unprofessional conduct under Section 58-55-502.
      3. (iii) An Interim H100 Qualifier that fails to provide the Division the documentation required under Subsection R156-55a-302g(1)(a) by 11:59 pm on November 30, 2027, shall be required to apply to become an H100 Qualifier under Subsection R156-55a-302g(1)(b).
      4. (iv) Nothing in this subsection shall be interpreted as allowing an H100 HVAC Contractor with an Interim H100 Qualifier to perform work described under Section R156-55a-308b without Certified Natural Gas Technicians.
   2. (b) By Application. An individual may petition the Division to be designated as an H100 Qualifier after meeting the terms of Subsection 58-55-302(3)(n) and Subsections R156-55a-302g(2) through R156-55a-302g(4), as an H100 Qualifier applicant.

2. (2) Experience Requirements. This subsection describes the HVAC Specific Experience required by an H100 Qualifier applicant.

   1. (a) An H100 Qualifier applicant:

      1. (i) shall have completed a total of 4,000 hours over no more than a five year period as an employee of one or more licensed contractors designated as H100, B100, S350, P200, or P201 where at least 90% of the H100 Qualifier applicant's work load was directly related to HVAC work supervised under the terms described in Subsection R156-55a-302g(2)(b); or

      2. (ii) shall be licensed by the Division as a:

         1. (A) Journeyman plumber;
         2. (B) master plumber;
         3. (C) residential journeyman plumber; or
         4. (D) residential master plumber.

   2. (b) Supervision. This subsection describes the supervision requirements of H100 Qualifier applicants under Subsection R156-55a-302g(2)(a)(i).

      1. (i) During the period described in this subsection, an H100 Qualifier applicant shall be directly supervised by an H100 Qualifier, as defined in Subsection R156-1-102a(1)(a) and free of actual or apparent conflicts of interest as defined in Subsection R156-55a-102(5).
      2. (ii) A supervisor may not certify applicant hours of supervised work unless the supervision of such work was done free of actual or apparent conflicts of Interest.

      3. (iii) During the period of supervision described in this subsection, an H100 Qualifier applicant may not install, modify, maintain, clean, repair or replace gas piping, combustion air vents, exhaust venting system or derating of gas input for altitude of a residential or commercial gas appliances unless one of the following conditions are met:

         1. (A) The H100 Qualifier applicant is a Certified Natural Gas Technician and is directly or indirectly supervised by the supervisor during the work; or
         2. (B) The supervisor of the H100 Qualifier applicant is a Certified Natural Gas Technician and is directly supervised during the work.

3. (3) Examination. An H100 Qualifier applicant shall successfully pass the following licensing examinations:

   1. (a) Utah Contractor Business and Law Examination under Section R156-55a-302a; and
   2. (b) the Utah HVAC written examination with a score of at least 70% before submitting the petition described in Subsection R156-55a-302g(4).

4. (4) Application Requirements. An H100 Qualifier applicant shall submit a petition to become an H100 Qualifier consistent with forms provided by the Division. An H100 Qualifier applicant is responsible for providing adequate, accurate, and verifiable information to demonstrate completion of the requirements listed in Subsections R156-55a-302g(1) through 302g(3), which may include:

   1. (a) Tax documents showing employment by a licensed H100 HVAC Contractor during the period the H100 Qualifier applicant is attesting to have received HVAC experience under Subsection R156-55a-302g(2);
   2. (b) Affidavits from HVAC Contractors or supervisors for which the H100 Qualifier applicant received HVAC experience under Subsection R156-55a-302g(2); and
   3. (c) An attestation under oath by the H100 Qualifier applicant that the work performed met the criteria required under Subsections R156-55a-302g(2)(a).

KEY: contractors, occupational licensing, licensing

Date of Last Change: March 30, 2026

Notice of Continuation: June 9, 2026

Authorizing, and Implemented or Interpreted Law: 58-1-106(1)(a); 58-1-202(1)(a); 58-55-101; 58-55-308(1)(a); 58-55-102(39)(a)