Maine to Texas: journeyman HVAC technician license reciprocity

Texas has no journeyman HVAC license in the usual sense; the person-held credential for an employee who does air conditioning and refrigeration work is the Registered ACR Technician registration issued by the Texas Department of Licensing and Regulation (TDLR). Anyone who assists a licensed ACR contractor with non-exempt maintenance or repair work must register: the applicant must be at least 16, file a one-page application with a $20 fee and answer a criminal history questionnaire, and there is no exam, no experience requirement and no continuing education. The registration is valid one year and is renewed for $20. TDLR also offers a voluntary Certified ACR Technician credential for technicians with 24 months of supervised experience or a TDLR-approved 2,000-hour training program who pass a PSI exam ($50 application, $60 exam, renewed for $35); it is not required to work. Because the registration is not an examined license, an out-of-state journeyman or technician license has nothing to transfer to: every technician must register with TDLR regardless of licenses held elsewhere, and all work must be performed under a Texas-licensed ACR contractor. Technicians who handle refrigerants also need federal EPA Section 608 certification.

Maine does not issue a journeyman HVAC, air conditioning or refrigeration license, and no Maine city or town was found to do so either; the Office of Professional and Occupational Regulation's list of licensed professions contains no HVAC or mechanical trade. What Maine does license is the fuel side of heating: the Maine Fuel Board issues Journeyman Oil Burner and/or Solid Fuel Technician licenses ($100 plus a $21 background check, exam required, after one year as a licensed apprentice or 160 hours of approved coursework plus six months of apprenticeship) and Propane and Natural Gas Technician licenses ($100 plus $21, board-approved training plus a Fuel Board exam), and anyone who installs or services oil, propane, natural gas or solid-fuel burning equipment must hold one. Ductwork, air conditioning, refrigeration and the mechanical parts of a heat pump need no state license; the electrical connection of a heat pump must be made by a licensed electrician (or, for mini-splits of 36,000 BTU or less in one- and two-family dwellings, by a licensed oil burner technician under a 2013 memorandum of understanding), and the installer needs federal EPA Section 608 refrigerant certification if the system is not factory charged. An out-of-state journeyman HVAC license therefore has nothing to transfer to; the technician may work for any employer without a Maine credential, but must obtain the relevant Fuel Board license before touching a furnace, boiler or gas appliance, and Fuel Board rules give out-of-state applicants no exam waiver, only credit for documented employment as a technician (a statutory endorsement process under 10 M.R.S. s. 8003-H exists but the board has not published a procedure). EPA Section 608 certification is federal and required everywhere for refrigerant handling.