South Carolina to Idaho: journeyman HVAC technician license reciprocity

Idaho issues a statewide HVAC Journeyman certificate of competency through the Heating, Ventilation and Air Conditioning Board at the Division of Occupational and Professional Licenses (DOPL); a journeyman works in the employ and under the direction of a licensed HVAC contractor. A new applicant pays a $35 application fee and qualifies either by completing 576 hours of instruction at a board-approved apprenticeship program plus 8,000 hours of supervised installation work while registered as an Idaho apprentice, or by documenting 16,000 hours of supervised HVAC installation work, and in both cases must pass the PSI-administered journeyman exam ($75) within a year of applying; the license costs $150 and renews for $75 every three years. DOPL also issues Specialty Journeyman and Limited Heating Specialty Journeyman certificates for hearth appliances, oil furnaces and gas piping. The HVAC board's FAQ states that Idaho has no reciprocal licensing agreement for HVAC. An out-of-state journeyman can instead use Idaho's universal licensure statute (Idaho Code 67-9409), under which the board must license a person holding a current, unrestricted license elsewhere who demonstrates competency, but may still require the Idaho exam; the HVAC application form itself offers no endorsement box, so applicants should contact DOPL before filing. EPA Section 608 certification is required nationwide to handle refrigerants.

South Carolina has no state journeyman HVAC license. The LLR Contractor's Licensing Board licenses mechanical contractors (entities qualified by an individual qualifying party) for air-conditioning, heating and refrigeration work over $10,000, and the Residential Builders Commission licenses Residential HVAC Installers and Repairers for residential work over $500; neither chapter of the contractor law creates a journeyman or technician credential, so an HVAC technician who is not a contractor works under one of those licensees with no state license. The journeyman-level credential that does exist is the trade certification card of the SC Mechanical Trades Certification Program, run since 1965 by the Municipal Association of South Carolina (the association of the state's cities) and, since January 1, 2026, by the Carolinas AGC Foundation; the program's own page says the card is not a license and must not be represented as one. No reciprocity or out-of-state acceptance is published for the journeyman card, so an arriving technician should expect to apply to CAGC ($35 application, PROV exam) if a local jurisdiction or employer requires a card. EPA Section 608 certification is federal and required of everyone handling refrigerants regardless of any South Carolina card.