Wyoming to Delaware: master HVAC technician license reciprocity
Wyoming does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Delaware's standard path for out-of-state applicants.
Your origin state does not issue a statewide license at this level, so there is no license to transfer. The destination's standard out-of-state path is shown; expect to meet it in full.
Reference only, not legal advice. Rules change; confirm with the licensing board before you apply. Full disclaimer.
Master license by reciprocity from a state not on the Board's published lists
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
A master-level HVAC licensee from a state, U.S. territory or jurisdiction that the Board has not yet classified applies by reciprocity in DELPROS; no Delaware examination is required on this path. The applicant must submit a copy of the origin jurisdiction's HVACR licensure law and regulations so the Board can decide whether its standards are substantially similar to Delaware's (24 DE Admin. Code 1800 § 3.2). If they are, 24 Del. C. § 1823(a) requires the Board to grant the license; if they are not, § 1823(b) requires proof of at least seven years of practice after master licensure, documented with Verification of Employment forms, W-2s or Schedule C. Every applicant pays the $173 application fee, has licensure verification sent directly to the Board from each jurisdiction where they hold or have held a license, uploads a CFC (EPA 608) certification card, and attests to the good-conduct requirements of § 1821(a)(4)-(7); the application must be completed within six months and is reviewed at the next Board meeting. Holders of only a municipal license (Pennsylvania, for example) cannot use reciprocity and must apply by examination: journeyman certificate plus 2 years under a master, or 7 years plus the By-Pass exam, then the ProV Master HVACR exam ($100, 100 questions, 4 hours, open book, 70%). A business that has just lost its only master may also obtain a 100-day temporary license ($40) for an owner or employee who is applying and sits for the next exam.
The Board's page does not say how long the substantial-similarity evaluation of an unlisted state takes or list the criteria it applies; regulation 3.2 says only that the applicant must demonstrate equivalent standards and supply the state's laws. Experience under an out-of-state master counts on the examination path because § 1821(a)(1) and regulation 3.1.2 accept supervision by 'an individual holding a similar level of licensure in another state'. Delaware publishes no separate business, law or code exam for masters and no insurance or bond requirement for the individual license.
At a glance
- Trade exam
- Waived
- Law / code exam
- Not required
- Out-of-state hours
- Count toward eligibility
What you must already have
- Your Wyoming license must be active and in good standing.
- You must have no disciplinary action or unresolved complaints on your record.
- You must have held your Wyoming license for at least 7 years.Required only if the Board finds the origin jurisdiction's standards not substantially similar: at least 7 years of practice after master licensure (24 Del. C. § 1823(b)).
- Origin jurisdiction's HVACR licensure law and regulations submitted for the Board's substantial-similarity evaluation (24 DE Admin. Code 1800 § 3.2)
What you'll do to get licensed in Delaware
- 1Application fee. Pay the application fee ($173). Master HVACR (or Master Restricted HVACR) application fee, non-refundable, paid in DELPROS.
- 2Other. State/jurisdiction licensure verification sent directly to the Board office from each state or jurisdiction where the applicant currently holds or has ever held a license (a business license covering employees does not need verification).
- 3Other. EPA Section 608 technician certification (Type I/II/III/Universal) to handle refrigerants; federal, does not expire. Delaware requires a copy of the CFC certification card with every Master HVACR, Master HVACR Restricted-Refrigeration and Master HVACR Restricted-Air Conditioning application (24 Del. C. § 1821(a)(3); 24 DE Admin. Code 1800 § 3.1.3).
- 4Other. Verification of Employment forms (or W-2s, employer affidavits or Schedule C with an explanation) covering at least 7 years of practice as a licensed master, needed if the Board finds the origin standards not substantially similar.
Published fees on this path total $173, excluding exam-vendor fees, bonds, and insurance.
What you'll need to buy or arrange
Exam preparation
Most boards contract PSI, Prov, or ICC for exams. Check which code edition the exam is written to before buying a prep course.
- Other
How Delaware licenses master HVAC technicians
Delaware master HVAC technician · “Master HVACR”
Statewide license
Delaware issues a person-held Master HVACR license through the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners in the Division of Professional Regulation (the electrical trade is regulated by a separate board). A Master HVACR licensee may design, install, service and alter heating, air conditioning, refrigeration, ventilation and process systems including gas piping; a Master HVACR Restricted license covers one specialty (forced-air heating with ventilation and gas piping, hydronic heating with gas piping, commercial hood systems, refrigeration, air conditioning, or gas piping). Employees work under a master's supervision without their own license. A new master needs a journeyman certificate from a federally-registered apprenticeship plus 2 years under a master, or 7 years under a master plus the ABC Delaware Apprenticeship By-Pass exam, then passes the ProV-administered Master HVACR exam (100 questions, 4 hours, open book, 70%, $100) and pays the $173 application fee; a CFC (EPA 608) card is required. Out-of-state masters are licensed by reciprocity without a Delaware exam under 24 Del. C. § 1823: the Board has published that Connecticut and Maryland standards are substantially similar (no experience proof) and that fourteen other jurisdictions are not (7 years of licensed practice required); all other states are evaluated case by case. Licenses renew biennially with 5 hours of continuing education from 2026.
Why Wyoming has nothing to transfer
Wyoming master HVAC technician
Licensed by cities and counties
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.
How local licensing works in Wyoming
How local licensing works. There is no state HVAC board; each city's ordinance defines its own master-level license and the contractor license it qualifies. The reciprocity statute the cities cite reaches only other Wyoming jurisdictions.
Cheyenne. A Master or Qualified Supervisor license (12.1.8) requires 4 years/8,000 hours documented as an apprentice (or certified equivalent training) plus 3 years/6,000 hours as a journeyman, all third-party verified, and passing results on a current ICC, NICET or NASCLA exam from the Board's list. Fees are $50 application plus $50 initial and $25 renewal. Every HVAC (C1) or Refrigeration (C1) contractor must employ a master or qualified supervisor full time, who may represent only one contractor and is responsible for all its work; the C1 tested contractor license costs $50 + $200 ($75 renewal) and requires workers' compensation and liability insurance. Refrigeration licenses require EPA Type II, III or Universal certification. Reciprocity is at the Board's discretion (3.3.2/3.5.2) with no published state list.
Casper. Mechanical Master ($75 new, $37.50 renewal) requires a federally recognized apprenticeship or four years in a Casper-licensed mechanical shop plus five years as a journeyman or master, and proof of passing ICC G29-N or equivalent; a Mechanical Contractor license ($300/$150) covers heating, ventilation, air conditioning, refrigeration and sheet metal and requires $250,000/$500,000 liability insurance. Reciprocal licenses are limited to other Wyoming jurisdictions.
Laramie. Master certificates of qualification in mechanical (3 years after journeyman), refrigeration (2) and gas service (2) are issued after the building official's exam ($5 per attempt), or without exam on presentation of a certificate from another governmental agency whose exam the board of examiners finds at least equal. All work under a Mechanical, Refrigeration or Gas Service Contractor license must be performed by or under the supervision of the corresponding master certificate holder.
Gillette. Master HVAC Mechanical license: five years of approved experience and ICC exam results, $50 annually; Master Refrigeration Technician additionally needs ESCO/EPA 608 certification. A Class D HVAC Mechanical Contractor ($150 new, $50 renewal, $5,000 bond) must name a full-time Master of Record able to reach any job site within 48 hours. Reciprocity (5-III-1(d), since July 1, 2024) is for other Wyoming local-government licenses only.
Rock Springs. Contractor registration only ($125 plus insurance certificate); no master license or exam.
Out-of-state holders. None of these cities names any other state as a reciprocity partner. The ICC National Standard Master Mechanical exam (G29-N) is accepted by Cheyenne, Casper, Laramie and Gillette, so an out-of-state master who holds an ICC certificate can apply directly with verified experience; one licensed on a state-specific exam should plan on taking the ICC exam, except in Laramie where the board of examiners may accept an equal exam from another agency.
Common questions
- Do I have to take the Delaware master HVAC technician exam if I'm licensed in Wyoming?
- No. The trade exam is waived on this path.
- How long do I need to have held my Wyoming license?
- At least 7 years before applying.
- What does it cost to get a Delaware master HVAC technician license from Wyoming?
- Published fees on this path total $173, not counting exam vendor fees or bonds.
- Do my Wyoming work hours count in Delaware?
- Yes. Documented out-of-state experience counts toward Delaware's eligibility requirements.
- Does it work the other way, from Delaware to Wyoming?
- Not necessarily. Reciprocity is directed. Going from Delaware to Wyoming, the mechanism is not applicable.
Sources
- 24 DE Admin. Code 1800 - Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners (regulations) · 24 DE Admin. Code 1800 §§ 2.0, 5.0 · Delaware Registrar of Regulations · Admin Rule · verified September 23, 2026
- 24 Del. C. ch. 18, subch. I - Board of Plumbing, HVACR Examiners: objectives and definitions · 24 Del. C. § 1802 · Delaware General Assembly · Statute · verified September 15, 2026
- 24 Del. C. ch. 18, subch. III - License: Heating, Ventilation, Air Conditioning, and Refrigeration · 24 Del. C. §§ 1820, 1821, 1823, 1825 · Delaware General Assembly · Statute · verified September 23, 2026
- Delaware Board of Electrical Examiners - Home · Delaware Division of Professional Regulation · Agency Page · verified September 15, 2026
- Delaware DPR - Plumbing and HVACR Examinations (ProV and Apprenticeship By-Pass exam) · Delaware Division of Professional Regulation · Agency Page · verified September 23, 2026
- Delaware DPR - Plumbing and HVACR Frequently Asked Questions · Delaware Division of Professional Regulation · Faq · verified September 23, 2026
- Delaware DPR - Board of Electrical Examiners fee schedule · Delaware Division of Professional Regulation · Agency Page · verified September 23, 2026
- Delaware DPR - Master HVACR and Master HVACR Restricted Licensure (examination and reciprocity) · 24 Del. C. §§ 1821, 1823 · Delaware Division of Professional Regulation · Agency Page · verified September 23, 2026
- Delaware DPR - Temporary Plumber or HVACR License (loss of sole license holder) · 24 Del. C. § 1831 · Delaware Division of Professional Regulation · Agency Page · verified September 16, 2026
- Prov, Inc. - Delaware Division of Professional Regulation Candidate Information Bulletin (22.03.09) · Prov, Inc. for the Delaware Division of Professional Regulation · Form · verified September 23, 2026
- EPA Section 608 Technician Certification Requirements · 40 CFR Part 82, Subpart F (Clean Air Act §608) · U.S. Environmental Protection Agency · Other · verified September 15, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.