HVAC licensing in Idaho

Idaho reaches the employed worker by statute — 'the business, trade, practice or WORK of heating, ventilation and air conditioning' requires a state Certificate of Competency, journeyman included — so you need an Idaho card, and there are two ways in. The MILITARY LANE is verified verbatim: members, honorably discharged former members, veterans and their spouses holding a current unrestricted license in another state get recognition with NO exam and NO application fee, decided within 15 business days by statute.

For everyone else, the standard application applies — no civilian reciprocity list was found, so plan on qualifying by Idaho's own route.

Partially established: the APPRENTICE registration ($10/year) is the lawful work-while-qualifying lane, and the in-plant exemption (54-5002(1)(d)) removes the question entirely for maintenance crews at qualifying employers. For a journeyman applicant awaiting exam or certificate, no interim provision was found. Military applicants get the 15-day statutory clock.

Examination leads to the certificate of competency — journeyman, specialty journeyman and contractor lanes, $35 application. The experience prerequisites live in the application and IDAPA rules; confirm the current hour bar with DOPL when it matters. Your personal floor is EPA 608.

Apprentices register with the board — $10 a year (specialty lanes $20 per two years) — and work under supervision while qualifying. High school students in recognized programs may do residential installations under constant on-the-job journeyman supervision.

The state certificate governs statewide.

Contractor lanes sit in the same classification system (54-5009); the employed journeyman holds the worker certificate and never needs the contractor class. ⚠️ The in-plant exemption is worth knowing for industrial placements: qualifying employers' own maintenance crews sit outside the certificate requirement entirely.