New Hampshire to Texas: master HVAC technician license reciprocity

Texas's highest HVAC credential is the Air Conditioning and Refrigeration Contractor license issued to an individual by TDLR, so it is mapped here to the master level. The license comes in Class A (units of any size) and Class B (cooling up to 25 tons and heating up to 1.5 million Btu/h) with Environmental Air Conditioning, Commercial Refrigeration and Process Cooling or Heating endorsements. A new applicant must be 18, document 48 months of practical ACR experience under a licensed contractor in the past 72 months (or 12 months as a certified technician plus 36 months of experience, with substitutions for HVAC/R degrees, engineering licenses and military training), pay a $115 application fee, pass the PSI exam for each class and endorsement ($74 Class A, $60 Class B, 70% to pass) within one year of filing, and file proof of commercial general liability insurance ($300,000 per occurrence/$600,000 aggregate for Class A; $100,000/$200,000 for Class B). The license is valid one year, renews for $65 and requires 8 hours of continuing education a year; a company must employ a licensed contractor at each permanent location. TDLR has reciprocity agreements with Georgia and South Carolina only; licensees from every other state or municipality apply under TDLR's substantial-equivalence review and may be required to take the Texas exam.

New Hampshire has no master HVAC, HVAC contractor, mechanical contractor or refrigeration license and no statewide general contractor license, so a person or firm may install and service heating, cooling, ventilation and refrigeration equipment without any state credential. The OPLC Mechanical Licensing Board's scope under RSA 153:27-a to 153:38 is limited to fuel gas fitting, plumbing and a voluntary oil heating technician certification; a business that does fuel gas work must hold a Mechanical Business Entity license ($275 for two years) and employ licensed fuel gas fitters, and plumbing performed as part of installing heating, cooling or air conditioning systems is exempt from plumber licensing. The highest person-held fuel credential is the Fuel Gas Service Technician license ($198, at least 2,000 hours of state-approved training and experience plus the Prov exam), which under Saf-Mec 300 qualifies the holder for all other gas fitter categories. New Hampshire has no reciprocity agreement for any of these licenses: an out-of-state license only establishes eligibility for the New Hampshire exam (Saf-Mec 302.14), and the endorsement rule Plc 313.34 requires the origin state to use the same or a later building and fire code edition and lists the gas fitter qualifying jurisdictions as 'TBD'. A master HVAC license from another state therefore gives its holder nothing to transfer to in New Hampshire; the only credentials that matter are the gas fitter license for fuel gas work, federal EPA Section 608 certification for refrigerants, and local mechanical permits. No New Hampshire municipality was found to issue its own HVAC license.