Mississippi to Oklahoma: journeyman HVAC technician license reciprocity

Oklahoma issues statewide mechanical journeyman licenses through the Construction Industries Board (CIB) under the Mechanical Licensing Act. The HVAC/R Unlimited category has no size limit; HVAC/R Limited covers cooling up to 25 tons and heating up to 500,000 Btu/h per appliance; both include refrigeration, sheet metal, natural gas and related process piping, and stand-alone Refrigeration, Sheet Metal, Natural Gas Piping and Process Piping journeyman categories also exist. A new applicant needs three years (6,000 hours) of verifiable experience in the category while employed by a licensed mechanical contractor, with approved trade-school hours substituting for up to two years, pays $75 ($25 application plus $50 initial license) and passes the PSI exam with 70% ($92 per portion). CIB's rules allow written reciprocity agreements and a case-by-case exam equivalency for licensees of jurisdictions whose exam the Board has approved, but CIB publishes no list of mechanical reciprocity partners or approved jurisdictions. Journeymen must work under a licensed mechanical contractor, renew annually in their birth month, and complete six hours of continuing education every 36 months.

Mississippi does not issue a journeyman HVAC license. The Mississippi State Board of Contractors (MSBOC) licenses contracting businesses (commercial HVAC/mechanical contractors on projects over $50,000 and Residential HVAC contractors on residential work above the residential thresholds) through a Certificate of Responsibility held by the company and a tested qualifying party, and its FAQ states that it does not license individual journeymen; none of its exams or reciprocity agreements apply to a technician who only wants to work for an employer. Individual HVAC mechanics are licensed, where they are licensed at all, by cities under their own ordinances: Southaven issues Apprentice, Journeyman and Master Mechanical licenses and accepts a current journeyman license from another jurisdiction or a passed ICC journeyman exam in place of its own testing, while Gulfport licenses only the Mechanical/HVAC contractor's qualifying party and has no journeyman card. An out-of-state journeyman HVAC license has no state-level recognition in Mississippi; the technician must check the ordinance of each city where they will work and apply locally, and Southaven-style acceptance of another jurisdiction's card or an ICC score is the closest thing to reciprocity that exists. EPA Section 608 refrigerant certification is a separate federal requirement that applies everywhere in the state.