Mississippi to Oklahoma: master HVAC technician license reciprocity
Mississippi does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Oklahoma'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.
Out-of-state master HVAC or mechanical contractor (all states; no published reciprocity partners)
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
No state has a published mechanical contractor reciprocity agreement with Oklahoma, so every out-of-state master HVAC technician or mechanical contractor uses the same route. Under OAC 158:50-9-4.1 an applicant from a state without a reciprocal agreement may request exam equivalency; if the Board has previously approved that jurisdiction's exam, the technical trade portion of the Oklahoma contractor exam is waived on a certified letter showing current good standing, the license category, a 70%+ exam score and no pending discipline, but the Mechanical Business and Law portion must still be passed. CIB does not publish the approved jurisdictions. Otherwise the applicant files the Application for Mechanical Examination with notarized experience affidavits and a copy of the out-of-state license, documents four years of verifiable experience in the category, pays $330, and must pass both portions of the contractor exam through PSI within three years of approval. To activate the license the contractor files a $5,000 bond and $50,000 general liability insurance with CIB; a contractor employed by a single business or public entity may instead file that employer's affidavit. Federal EPA Section 608 certification is required separately to handle refrigerants.
Even where a written contractor reciprocity agreement exists, OAC 158:50-9-6(e) grants only a journeyman license by reciprocity and requires the Oklahoma Business and Law portion before the contractor license issues; since no mechanical agreement is published, no agreement rows are recorded. Some third-party sites claim contractor reciprocity with Texas, Arkansas, Kansas or New Mexico, but no CIB page lists such an agreement.
At a glance
- Trade exam
- Required
- Law / code exam
- Required
- Out-of-state hours
- Count toward eligibility
What you must already have
- You must document at least 8,000 hours of qualifying work experience.Journeyman requirement of three years plus one additional year of verifiable experience in the mechanical trade, at 2,000 hours per year (OAC 158:50-9-1(b)(2)).
- Your Mississippi license must be active and in good standing.
- You must have passed a licensing exam in Mississippi that the destination considers comparable.
What you'll do to get licensed in Oklahoma
- 1Application fee. Pay the application fee ($30). Contractor application fee, non-refundable (OAC 158:50-9-2(b)).
- 2License fee. Pay the license or certificate fee ($300). Initial contractor license fee, submitted with the application; annual renewal $200.
- 3Trade exam. Pass the destination's trade exam. Technical trade portion of the Oklahoma HVACR Contractor exam (Unlimited or Limited) administered by PSI, 70% to pass; waived only under approved exam equivalency.
- 4Law / code exam. Pass a law, rules, or code exam. Oklahoma Mechanical Business and Law portion of the contractor exam (PSI), 70% to pass; never waived, including for reciprocity applicants.
- 5Exam fee. Pay the exam fee ($184). PSI fee of $92 per examination portion (two portions), non-refundable.
- 6Surety bond. Post a surety bond ($5,000). Continuous $5,000 corporate surety bond payable to the Oklahoma Construction Industries Board, filed before the license is activated (OAC 158:50-5-3(a)).
- 7Insurance. Carry the required insurance ($50,000). Commercial general liability insurance of at least $50,000 with CIB named as certificate holder (OAC 158:50-5-3(b)).
- 8Other. Compliance with workers' compensation insurance laws; the licensed contractor must be a permanent employee, owner, partner or officer of the mechanical firm responsible for its work.
- 9Other. Hold EPA Section 608 technician certification to handle refrigerant; federal law requires it, but it is not a condition of this state license (if applicable).
Published fees on this path total $514, 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.
- Trade exam
- Law / code exam
- Exam fee · $184
- Other · if applicable
Surety bond
A license or contractor bond is bought from a surety, not the state. Price is a small percentage of the bond amount and depends on your credit.
- Surety bond · $5,000
Liability insurance
Some states require proof of general liability or workers' compensation coverage at licensing time.
- Insurance · $50,000
How Oklahoma licenses master HVAC technicians
Oklahoma master HVAC technician · “Mechanical Contractor (HVAC/R Unlimited or Limited)”
Statewide license
Issued by Oklahoma Construction Industries Board (CIB), Mechanical Division
Oklahoma has no 'master HVAC' license; its highest person-held HVAC credential is the Mechanical Contractor license, which CIB issues to an individual who passes the two-part contractor exam (technical trade and Mechanical Business and Law, 70% each, $92 per portion). This site maps the HVAC/R Unlimited (or Limited) Mechanical Contractor license to the master level. An applicant needs the journeyman qualifications plus one additional year, so four years (8,000 hours) of verifiable experience in the category, and pays $330 ($30 application plus $300 initial license). After passing, an inactive license issues until the contractor files a $5,000 corporate surety bond and a $50,000 commercial general liability certificate with CIB; an inactive contractor may work as a journeyman. Every mechanical firm must have a licensed contractor associated with and responsible for its work. OAC 158:50-9-6 lets CIB sign contractor reciprocity agreements, under which the applicant would still have to pass the Business and Law portion, but CIB publishes no mechanical partner states. Licenses renew annually ($200) with six hours of continuing education every 36 months.
Why Mississippi has nothing to transfer
Mississippi master HVAC technician
Licensed by cities and counties
Mississippi does not issue a personal master HVAC license. The state-level HVAC credential is the Mississippi State Board of Contractors (MSBOC) contractor license: commercial 'Heat, Ventilation, A/C - HVAC' under the Mechanical classification (required on commercial jobs over $50,000; application and renewal $400, $300,000/$600,000 liability insurance, CPA-reviewed financial statement) or Residential HVAC (required for residential work over $10,000 in remodeling or $50,000 new construction; application $50, renewal $100). The license is issued to the business through a Certificate of Responsibility with a named qualifying party who passes the open-book PSI HVAC (or Residential HVAC) trade exam and the mandatory Mississippi Law and Business Management exam, so a master HVAC mechanic who only wants to work for an employer has nothing to transfer to at the state level; the personal master credential exists only in cities such as Southaven (Master Mechanical, $100, which itself requires an active MSBOC license, a $10,000 bond and liability insurance) and Gulfport (Mechanical/HVAC contractor license issued to the qualifying party, $100). MSBOC waives its HVAC trade exam, for $50 per exam, for qualifying parties who have held a license for at least one year with the Alabama Board of Heating, Air Conditioning and Refrigeration Contractors, the Alabama General Contractors Board, the Louisiana State Licensing Board for Contractors, the Ohio Construction Industry Licensing Board (HVAC or Refrigeration), the South Carolina Residential Builders Commission (Residential HVAC) or the Tennessee Board for Licensing Contractors, provided the license was obtained by that board's exam and there has been no disciplinary action in the period stated in each agreement; the Business and Law exam is never waived. EPA Section 608 certification is a separate federal requirement.
How local licensing works in Mississippi
State contractor license (business). MSBOC issues commercial and residential contractor licenses to companies through a Certificate of Responsibility. The commercial HVAC classification ('Heat, Ventilation, A/C - HVAC', with Ductwork, Refrigeration and Boiler specialties) requires the PSI open-book HVAC trade exam and the Mississippi Law and Business Management exam taken by the qualifying party (owner, officer or responsible managing employee), a $400 application fee ($400 annual renewal, $100 per additional classification), general liability insurance of $300,000 per occurrence / $600,000 aggregate naming MSBOC, and a CPA-reviewed financial statement showing net worth of $50,000 for a major classification or $20,000 for a specialty. Residential HVAC and Residential Mechanical (HVAC plus plumbing) licenses require the Residential HVAC (and Plumbing) exam and the Law and Business exam, a $50 application fee ($100 per additional classification, $100 renewal), proof of liability insurance with no minimum, three reference letters and documented experience in the classification.
MSBOC exam waivers for out-of-state qualifying parties. Reciprocity waives the trade exam only ($50 per exam waived, plus a $25 verification fee) after the origin board completes MSBOC's Reciprocity Verification Form; the applicant must have held the origin license for one year and passed that board's exam. HVAC waivers are available for the Alabama Heating and Air board (current license, Alabama exam), the Alabama General Contractors Board (HVAC can be waived; no discipline in the last year), Louisiana (HVAC can be waived but not mechanical or plumbing; the formal agreement ended but MSBOC continues to recognize Louisiana scores), Ohio CILB (HVAC and Refrigeration; no discipline in the last year), the South Carolina Residential Builders Commission (Residential HVAC; no discipline in three years) and Tennessee (all exams, the only state whose mechanical and plumbing exams are waived; no discipline in the last year). Arkansas, Florida, Georgia, North Carolina and the South Carolina Contractors Licensing Board agreements do not cover HVAC. Everyone takes the Mississippi Law and Business Management exam.
Southaven. Master Mechanical license ($100) for the license qualifier: application, photo ID, certificate of liability insurance, $10,000 surety bond in favor of the city, an active MSBOC contractor's license certificate and the company EIN. An out-of-state contractor without an MSBOC license must instead provide a letter of good standing from a municipality where its license is active and may not take residential projects or commercial projects over $50,000; the city defers to MSBOC on reciprocity.
Gulfport. Mechanical/HVAC contractor license ($100, waived with an MSBOC Certificate of Responsibility) issued in the name of the qualifying party: notarized application, current MSBOC license if held, five reference letters (waived with an MSBOC license), $100,000/$300,000 public liability insurance naming the city, home-jurisdiction privilege license and photo ID.
Out-of-state holders. A master HVAC licensee from another state who wants to contract in Mississippi applies to MSBOC as the qualifying party of a business, uses the exam waiver if the origin board is on the list, and then registers with each city; a master who only wants employment needs no state license and, in most cities, no personal card.
Common questions
- Do I have to take the Oklahoma master HVAC technician exam if I'm licensed in Mississippi?
- Yes. Oklahoma requires the trade exam on this path, plus a law or code exam.
- What does it cost to get a Oklahoma master HVAC technician license from Mississippi?
- Published fees on this path total $514, not counting exam vendor fees or bonds.
- Do my Mississippi work hours count in Oklahoma?
- Yes. Documented out-of-state experience counts toward Oklahoma's eligibility requirements.
- Does it work the other way, from Oklahoma to Mississippi?
- Not necessarily. Reciprocity is directed. Going from Oklahoma to Mississippi, the mechanism is not applicable.
Sources
- 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
- Oklahoma CIB - Active Contractor Requirements (bond and insurance) · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma CIB - Mechanical Industry · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma CIB - Mechanical Application Information and Application for Mechanical Examination · Oklahoma Construction Industries Board · Form · verified September 23, 2026
- Oklahoma CIB - Mechanical Contractor · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma CIB - Mechanical Forms · Oklahoma Construction Industries Board · Agency Page · verified September 23, 2026
- Oklahoma Mechanical Licensing Act, 59 O.S. §§ 1850.1 et seq. · 59 O.S. §§ 1850.6, 1850.7, 1850.8, 1850.8A · Oklahoma Construction Industries Board · Statute · verified September 23, 2026
- OAC Title 158, Chapter 50 - Mechanical Industry Regulations (permanent rules effective 10/1/2020) · OAC 158:50-5-2, 158:50-5-3, 158:50-9-1, 158:50-9-2, 158:50-9-4.1, 158:50-9-6, 158:50-9-7 · Oklahoma Construction Industries Board · Admin Rule · verified September 23, 2026
- State of Oklahoma Electrical, Mechanical, Roofing and Plumbing Examinations Candidate Information Bulletin (PSI) · PSI Services for the Oklahoma Construction Industries Board · Form · verified September 23, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.