Wyoming to Rhode Island: master HVAC technician license reciprocity

Rhode Island's master-level HVAC credential is the Refrigeration Master Class I (RM1), the unlimited refrigeration/air-conditioning master license issued by DLT to an individual after passing the master examination; a Master Class I may be self-employed and, under R.I. Gen. Laws § 28-27-4, a master refrigeration contractor performs refrigeration/air conditioning work through a regular place of business personally or through employed journeypersons. The Refrigeration Master Class II (RM2) is the limited version (comfort cooling to 20 tons, product cooling to 3 tons, 1 hp freezing). A Rhode Island applicant must have held a Rhode Island Refrigeration Journeyperson I license for one year (or a Master II for one year; Master II requires three years as a Journeyperson II). Rhode Island has no reciprocity agreements and no exam waiver, but R.I. Gen. Laws § 28-27-10(3) and DLT regulation § 2.12.C allow an applicant whose out-of-state law designates them a refrigeration/air-conditioning contractor or master to sit the Rhode Island master exam directly on the strength of that license, or, where the origin state has no Master Class I license, on a notarized resume showing six years' experience including one as a contractor. Fees are a $75 application fee and a $240 two-year license fee for Master I ($96 for Master II); the DLT fee table also lists a 'Contractor Master Refrigeration' at $240 and a no-test Master Mechanical Contractor ($480) reserved for those with ten years each as Pipefitter Master I and Refrigeration Master I. Licenses renew every two years on the licensee's birthday.

Wyoming issues no master HVAC, mechanical or refrigeration license and no HVAC contractor license; the State Fire Marshal's electrical program is the only state trade licensing, and its LM-H Limited Technician license covers only HVAC electrical wiring. The master-level credential exists only in city ordinances: Cheyenne's Master or Qualified Supervisor license for HVAC and refrigeration (8,000 apprentice hours plus 6,000 journeyman hours and an ICC/NICET/NASCLA exam), Casper's Mechanical Master (apprenticeship or four years plus five years as a journeyman or master, ICC G29-N), Laramie's master mechanical, refrigeration or gas service certificate of qualification (three, two and two further years respectively, city exam), and Gillette's Master HVAC Mechanical license (five years of approved experience plus the ICC exam). In each of these cities a contractor doing HVAC work must employ or be a master (Cheyenne 'qualified supervisor or master', Gillette and Casper 'Master of Record'), and the contractor license itself is a separate business license with fees ($200-$300 initial in Cheyenne and Casper, $150 in Gillette) and insurance. Rock Springs registers contractors for $125 with proof of insurance and tests no one. No city publishes reciprocity with other states' master HVAC or HVAC contractor licenses; Casper and Gillette reciprocate only with other Wyoming jurisdictions, Cheyenne's Board has discretion but no partner list, and Laramie may waive its exam for a certificate from any governmental agency whose exam is judged at least equal. A master arriving from another state should expect to present or take the ICC National Standard Master Mechanical exam (G29-N) and apply separately in each city.