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State files updated Oct 27, 2026
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C-21 Refrigeration and Air Conditioning License (Nevada)

Nevada has 639 active C-21 Refrigeration and Air Conditioning holders in the state file as of 2026-10-271, the 8th-largest of 28 classes with at least 200 holders. 14 of them expire by 2026-12-26.

Active holders
639
3.3% of active Nevada licenses
Expiring by 2026-12-26
14
2.2% of holders

What does the Nevada Refrigeration and Air Conditioning license require?

Classification C-21 Refrigeration and air-conditioning, with subclassifications C-21a refrigeration, C-21b air-conditioning, C-21c sheet metal, C-21d maintenance, C-21e solar air-conditioning, C-21f chilled and hot water systems, C-21g industrial piping (NAC 624.380). C-1f (heating, cooling and circulating air) also covers some HVAC work. No separate state HVAC technician license in NRS/NAC 624.2

Exam

Qualified individual must pass the Business and Law (CMS) exam plus the trade exam for the classification, given by PSI.1

Bond

Every license needs a bond or cash deposit, amount set by the Board between $1,000 and $500,000 based on license type, monetary limit and the applicant's finances.3

All Nevada license requirements

How do you check a C-21 license?

Search by license number or business name on the Nevada license lookup, which reads the same state file.

Sources

  1. NV State Contractors Board active contractor listing (app.nvcontractorsboard.com) (nvcontractorsboard.com, 2026-10-27)
  2. Nevada State Contractors Board: classes (leg.state.nv.us)
  3. Nevada State Contractors Board: bond (leg.state.nv.us)