Nevada to District of Columbia: journeyman HVAC technician license reciprocity

How local licensing works. NRS Chapter 624 licenses only contractors. A C-21 Refrigeration and Air-Conditioning license (NAC 624.380, with subclassifications C-21a Refrigeration through C-21g Industrial Piping) is issued to a business and qualified by an individual with four years of journeyman-or-higher experience; the NSCB's own FAQ says it does not license individual journeymen. Whether a working HVAC mechanic needs a personal card is decided by each county's or city's building administrative code, and only the southern Nevada jurisdictions were found to require one.

Clark County (unincorporated Las Vegas valley, Laughlin and other unincorporated areas). Clark County Code §22.02.245 issues mechanical permits only to contractors holding an active Nevada C-21 license. §22.02.250(B) requires the contractor to employ at least one mechanical qualified individual and, as amended in 2010 by Ordinance 3899, to have a mechanical qualified individual or a journeyman HVAC mechanic present during work hours in a supervisory capacity on every job site where permitted mechanical work of residential or light-frame construction is being performed. §22.02.255 defines a journeyman as someone who has passed the appropriate journeyman examination accepted by the Building Official and makes certificates renewable; §22.02.260(A)(9) lists 'Journeyman HVAC Mechanic - all aspects of mechanical work; mechanical work of residential and light frame construction' and requires certificates to be kept current with the county's accepted third-party testing agency. The only equivalency in the code (§22.02.255(C)) is for a current certificate from an accepted independent testing agency or from a Nevada political subdivision inside Clark County; there is no provision for other states' licenses, and unlike plumbing no experience prerequisite is stated for the HVAC exam. Under the county's ICC bulletin (June 30, 2014) the exam is ICC 459 Nevada (Clark County) Journeyman HVAC Mechanic: 80 multiple-choice questions, open book, 4 hours, $100, scheduled through Pearson VUE; the ID card costs $10, is valid three years, and is renewed for $30 with 1.5 CEUs (15 hours) on the current Uniform Mechanical Code and local amendments from approved providers (CSN, IAPMO, ICC, SMWIA, NATE, OSHA, RSES, SMACNA); a card expired more than one year requires re-examination.

City of Las Vegas. The City of Las Vegas Administrative Code (2019 edition) §306 carries the same rule: at least one mechanical qualified individual on staff, and a mechanical qualified individual or journeyman HVAC mechanic on site in a supervisory capacity for permitted residential or light-frame mechanical work, with certifications issued or approved by the city. The county's pages do not say who now proctors the journeyman HVAC mechanic exam and issues the card; applicants should confirm with the Clark County Department of Building and Fire Prevention before scheduling.

Out-of-state holders. No jurisdiction publishes a reciprocity or endorsement path for an out-of-state HVAC journeyman or technician license. The practical route is to pass the Clark County journeyman HVAC exam once and obtain the county card, which is honored in the City of Las Vegas; EPA Section 608 certification is required separately under federal law.