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Utah is changing the structure of its HVAC contractor licensing. A new H100 HVAC qualifier license will replace the existing S350 HVAC contractor classification.

This change will affect both current and future HVAC professionals, and it's important to ensure you're aware of how that impact will extend to experience, exams, and certification requirements in the state.

What Does the New H100 HVAC Qualifier License Cover?

The Utah State Legislature has passed HB 442 during the 2025 General Session. This house bill is replacing the state's current licensing system with a stronger focus on more specific classification and clear experience and testing standards.

The new H100 HVAC qualifier license will cover a variety of work, including heating, air conditioning, and ventilating systems. Fabrication and installation fall within that scope, with the new framework laying out clear guidelines for who can oversee regulated work.

This classification will also include refrigeration work, such as refrigerated rooms and spaces. The scope is similar overall to the existing S350 classification, with the largest differences focusing on licensing requirements.

Expanded Experience Requirements

One of the key changes is that the H100 license will include HVAC-specific experience requirements. While general construction experience used to serve as a viable pathway to licensing, that will no longer be the case.

Contractors will now need direct HVAC work experience to demonstrate their competency before applying. The new license will require two years of full-time HVAC-specific experience.

Exams Required for the H100 HVAC Qualifier License

Applicants for the H100 HVAC qualifier license will have to pass exams similar to those of other contractors. That includes the Utah Contractor Business and Law Examination, covering regulations, responsibilities, and business practices.

Additionally, applicants must pass the Utah HVAC written examination. The exam focuses on HVAC-specific knowledge to ensure that contractors have the necessary technical understanding.

What This Means for Current S350 License Holders

The transition includes a plan for current S350 license holders to acquire new H100 licenses. This transition period will last until November 30, 2027. A contractor who held an S350 license in good standing on January 1, 2026, will be treated as an interim H100 qualifier during the transition period.

To become a regular H100 qualifier, interim qualifiers will have to meet the updated standards, such as obtaining their natural gas technician certification.

Additional Gas Work and Safety Requirements

Another critical detail regarding the new licensing framework addresses gas line work. The rule allows HVAC contractors to perform work involving gas lines, but only if they hold the appropriate plumbing credentials or complete an approved certification program.

Gas line work poses serious safety concerns, so these increased requirements are designed to ensure that only qualified individuals perform it. Both existing qualifiers and new applicants must plan accordingly.

Preparing Yourself for the New H100 HVAC Qualifier License

Are you getting ready to take your exams for the new H100 HVAC qualifier license? You can put your best foot forward with an exam prep course from RocketCert. We offer 24/7 access so that you can accelerate your career on your terms. Contact us to learn more about obtaining your Utah HVAC qualifier's license today.