Do I have to take the Idaho master HVAC technician exam if I'm licensed in Tennessee?

Yes. Idaho requires the trade exam on this path.

What does it cost to get a Idaho master HVAC technician license from Tennessee?

Published fees on this path total $335, not counting exam vendor fees or bonds.

Do my Tennessee work hours count in Idaho?

Yes. Documented out-of-state experience counts toward Idaho's eligibility requirements.

How long does the application take?

The board's published or typical processing time is about 30 days.

Does it work the other way, from Idaho to Tennessee?

Not necessarily. Reciprocity is directed. Going from Idaho to Tennessee, the mechanism is not applicable.

Tennessee to Idaho: master HVAC technician license reciprocity

No credit· Start overVerified September 15, 2026· 9 sources

Tennessee does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Idaho'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.

Universal licensure for out-of-state HVAC contractors (all states)

Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.

With no reciprocity agreements, every out-of-state HVAC contractor or master is treated the same. Idaho Code 67-9409 obliges the HVAC board to license a person who holds a current, valid and unrestricted license in another state and demonstrates competency, on the standard application, fees and background checks, but lets the board require all or part of its examination; the board's rules require every contractor applicant to pass the board-designated exam and post a $2,000 bond, and DOPL publishes no HVAC-specific endorsement procedure. The realistic path is therefore the standard contractor application ($35), the PSI contractor exam ($75), the $2,000 compliance bond and the $225 license fee, with the out-of-state license and experience submitted as supporting evidence of competency.

Idaho's contractor exam covers business and law material (the DOPL Contractors' Business and Law Reference Manual is the allowed reference), so it is recorded as the trade exam rather than a separate law exam. Idaho Code 54-5013 sets a 24-month certificate term while DOPL's fee table shows a 3-year term for journeyman and contractor licenses; the fee table is the current practice. Whether the board waives any part of the exam under 67-9409 was not confirmed from an official page.

At a glance

Trade exam: Required
Law / code exam: Not required
Out-of-state hours: Count toward eligibility
Typical processing: About 30 days

What you must already have

Your Tennessee license must be active and in good standing.

What you'll do to get licensed in Idaho

1Application fee. Pay the application fee ($35). HVAC Contractor application processing fee (non-refundable).
2Trade exam. Pass the destination's trade exam. Idaho HVAC Contractor examination administered by PSI (board-designated exam, IDAPA 24.39.70.100.03).
3Exam fee. Pay the exam fee ($75). PSI examination fee.
4Surety bond. Post a surety bond ($2,000). HVAC contractor compliance bond of $2,000 (or an acceptable corporate industry group bond), effective for the certificate period.
5License fee. Pay the license or certificate fee ($225). Contractor license fee (3-year term; renewal $150, reinstatement $225).
6Other. EPA Section 608 technician certification (Type I/II/III/Universal) to handle refrigerants; federal, does not expire. Not listed on DOPL's HVAC pages.

Published fees on this path total $335, 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
Exam fee · $75
Other

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 · $2,000

How Idaho licenses master HVAC technicians

Idaho master HVAC technician · “HVAC Contractor”

Statewide license

Verified September 15, 2026· 9 sources

Issued by Idaho Heating, Ventilation and Air Conditioning Board (Division of Occupational and Professional Licenses)

Idaho has no master HVAC title; its highest credential is the HVAC Contractor certificate of competency, which is issued as a card in the name of the individual who passes the board's contractor examination and is therefore mapped here to the master level (an HVAC business must hold or employ a certificate holder, and Specialty Contractor and Limited Heating Specialty Contractor certificates cover gas piping, hearth appliances and oil furnaces). The applicant pays a $35 application fee, passes the PSI-administered HVAC contractor exam ($75, using the DOPL Contractors' Business and Law Reference Manual as a reference), provides a $2,000 compliance bond, and pays the $225 license fee; the certificate renews for $150 every three years. Idaho's HVAC board states that it has no reciprocal licensing agreement. A contractor licensed in another state may apply under Idaho's universal licensure statute (Idaho Code 67-9409), which requires the board to license a person with a current, unrestricted out-of-state license who demonstrates competency, but allows it to require the Idaho exam; since DOPL publishes no separate procedure for HVAC, applicants should expect to take the contractor exam. EPA Section 608 certification is required nationwide to handle refrigerants.

Moving to Idaho Leaving Idaho

Why Tennessee has nothing to transfer

Tennessee master HVAC technician

Licensed by cities and counties

Verified September 15, 2026· 16 sources

Issued by Local code enforcement offices (Nashville, Memphis/Shelby County, Chattanooga, Knoxville and other exempt jurisdictions); the state issues only the CMC / CMC-C contractor license to businesses

Tennessee does not issue a master HVAC license. The state-level HVAC credential is a contractor license with the CMC (full mechanical: plumbing and HVAC) or CMC-C (HVAC/refrigeration) classification from the Board for Licensing Contractors, which is issued to a business that names a qualifying agent and is required for any project of $25,000 or more. The qualifying agent passes the Tennessee Business & Law exam and the CMC or CMC-C trade exam (Prov from July 1, 2026; CMC candidates need Board pre-approval, $50), and the business files a reviewed or audited financial statement (or, from July 1, 2026, a surety bond of at least half the requested limit) that sets its monetary limit, proves general liability and workers' compensation insurance, and pays $250 ($200 biennial renewal). The Board's trade-exam-waiver agreements let a contractor licensed in Alabama (HVAC), Louisiana (mechanical), Mississippi (mechanical), Ohio (HVAC), South Carolina (HVAC) or West Virginia (mechanical) skip the trade exam but not the Business & Law exam or any other requirement; North Carolina's and NASCLA's waivers do not cover HVAC. Master-level licenses issued to individuals exist only locally: Nashville's Master Mechanical (six years) and HVAC&R (four years) certificates, Memphis/Shelby County's First-Class and Third-Class Mechanical Contractor licenses, and Chattanooga's Master Mechanical Contractor license. A master HVAC license from another state has no state-level recognition in Tennessee; its holder either registers a business for the CMC-C license or applies for the local master card where they will work. EPA Section 608 certification is required federally to handle refrigerants.

How local licensing works in Tennessee

State contractor route (CMC / CMC-C). Required statewide for projects of $25,000 or more and accepted by the cities as a substitute for their own master cards for permit purposes (Nashville registers CMC/CMC-C firms for $100 with a $40,000 bond and $300,000 liability certificate; Memphis/Shelby County registers state mechanical licensees for $150). Requirements: Business & Law exam plus the CMC-C or CMC trade exam ($50 pre-approval for CMC), $250 application fee, reviewed or audited financial statement or a surety bond of at least 50% of the monetary limit (from July 1, 2026), general liability and workers' compensation insurance. Trade-exam waiver, on verification by the other board that the qualifying agent passed a comparable exam: Alabama HVAC (CMC-C), Louisiana Mechanical (CMC), Mississippi Mechanical (CMC), Ohio HVAC (CMC-C), South Carolina HVAC (CMC-C), West Virginia Mechanical (CMC). The Board stresses the waiver applies only to the trade exam, cannot be used by applicants with discipline, open complaints or felony convictions, and does not allow another state's license to be used in Tennessee.

Nashville (Davidson County). The Board of Mechanical, Plumbing and Electrical Examiners and Appeals issues the Master Mechanical certificate (six years' experience) and HVAC&R certificate (four years); a mechanical engineering degree may substitute. The application asks for licenses held in other cities or states, employer confirmations and a recommendation letter; the Chief Mechanical Inspector approves, Prov administers the exam (70% to pass, 30-day retest wait). The certificate holder then registers the firm as a Metropolitan Mechanical Gas Contractor with a Davidson County business license, $40,000 permit bond and $300,000 liability certificate. No exam waiver for out-of-state licenses is published.

Memphis and Shelby County. First-Class Mechanical Contractor (age 21, 4 years of full-time installation or design experience, unlimited scope) and Third-Class Mechanical Contractor (2 years, equipment up to 15 tons or 15 hp) after a written exam set by the Mechanical/Gas Code Board; $150 registration, $110 annual renewal, licenses expire December 31, $25,000 continuous permit bond. The mechanical code has no reciprocity provision for mechanical contractors.

Chattanooga. Master Mechanical Contractor license from the Board of Mechanical Examiners: three or more years as a Journeyman Mechanic Class 1 or 2, or a current or previously held unrevoked Master Mechanical Contractor or equivalent license from Chattanooga or any other governmental agency, or a Tennessee PE license, or acceptable education and experience; $415 per two-year cycle including the exam fee. A license from elsewhere establishes eligibility for the exam but is not stated to waive it.

Knoxville. Permits are pulled under a State Contractor Registration (CMC/CMC-C) or the other registration types on the city's permit page; the city's own mechanical license classes and fees could not be confirmed from an official page, so contact Plans Review & Inspections (865-215-4311).

Out-of-state holders. The only published recognition in Tennessee is the state Board's trade-exam waiver for contractors from AL, LA, MS, OH, SC and WV, which still requires the Business & Law exam and a full contractor application. The local master cards in Nashville, Memphis and Chattanooga treat an out-of-state master license as evidence of experience or exam eligibility, not as a substitute for their own examinations.

Moving to Tennessee Leaving Tennessee

Common questions

Do I have to take the Idaho master HVAC technician exam if I'm licensed in Tennessee?: Yes. Idaho requires the trade exam on this path.
What does it cost to get a Idaho master HVAC technician license from Tennessee?: Published fees on this path total $335, not counting exam vendor fees or bonds.
Do my Tennessee work hours count in Idaho?: Yes. Documented out-of-state experience counts toward Idaho's eligibility requirements.
How long does the application take?: The board's published or typical processing time is about 30 days.
Does it work the other way, from Idaho to Tennessee?: Not necessarily. Reciprocity is directed. Going from Idaho to Tennessee, 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, 2026Federal requirement in every state: technicians who maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere must be certified (Type I small appliances, Type II high-pressure, Type III low-pressure, Universal). Apprentices under direct supervision are exempt. Certification does not expire; the core exam must be proctored for Universal certification. State HVAC boards commonly require it before licensure, but it is not itself a state license.
Idaho Code 54-5007 - Requirements for Certificates of Competency · Idaho Code § 54-5007 · Idaho State Legislature · Statute · verified September 15, 2026The HVAC board prescribes rules for examination, qualification and certification of contractors, journeymen, apprentices and the specialty classes; HVAC contractors and specialty contractors must provide a $2,000 bond or an acceptable corporate industry group bond.
Idaho Code 54-5009 - Classification of Competency (HVAC apprentice, journeyman, contractor, specialty contractor) · Idaho Code § 54-5009 · Idaho State Legislature · Statute · verified September 15, 2026Four classifications: apprentice (works only under a journeyman or contractor), journeyman (works in the employ and under direction of an HVAC contractor and has completed all trade-required classes), HVAC contractor (any business, partnership, company, firm or association installing, maintaining or repairing HVAC appliances or gas-fired equipment) and HVAC specialty contractor (gas piping, gas appliances, decorative gas-fired appliances).
Idaho Code 54-5011 - Issuance of Certificate of Competency · Idaho Code § 54-5011 · Idaho State Legislature · Statute · verified September 15, 2026A certificate of competency in the form of a card bearing the holder's name, classification examined for and certificate number is issued to an applicant upon successful completion of the examination; this is why the contractor certificate is treated here as a person-held, exam-qualified credential.
Idaho Code 67-9409 - Universal Licensure · Idaho Code § 67-9409 · Idaho State Legislature · Statute · verified September 15, 2026Every Idaho licensing authority must establish a procedure to license a person who holds a current, valid and unrestricted license in another state and demonstrates competency by methods the board determines; the applicant files the standard application, supporting materials and background checks, pays the same fees, and may be required to take all or part of the Idaho exam (no jurisprudence exam may be added); the board may compare scopes of practice and issue a limited license pending additional training. Enacted 2020, amended 2023.
Idaho DOPL - Heating, Ventilation and Air Conditioning Board (program home and fees) · Idaho Division of Occupational and Professional Licenses · Agency Page · verified September 15, 2026License types: Apprentice, Journeyman, Contractor, Specialty Apprentice, Specialty Journeyman, Specialty Contractor and Limited Heating Specialty variants. Fees: application $35; Journeyman and Specialty Journeyman $150 license / $75 renewal / $150 reinstatement, 3-year term; Contractor and Specialty Contractor $225 / $150 / $225, 3-year term; Apprentice $10 (1 year); Specialty Apprentice $20 (2 years). Adopted codes include the 2018 IFGC and 2018 IMC. No reciprocity content.
Idaho DOPL - HVAC Board FAQs · Idaho Division of Occupational and Professional Licenses · Faq · verified September 15, 2026'Q: Does Idaho have a Reciprocal Licensing agreement? A: No.' Also states that hours worked without a required license do not count toward the required on-the-job time, and that unlicensed HVAC work is subject to civil penalties.
Idaho DOPL - HVAC Program Information and Exams · Idaho Division of Occupational and Professional Licenses · Agency Page · verified September 15, 2026Exams are administered by PSI for a $75 fee; candidates bring their own reference materials (the DOPL Contractors' Business and Law Reference Manual in a binder for the contractor exam); after passing, apply for licensure through the eDOPL portal. Links the board-approved apprentice program list.
IDAPA 24.39.70 - Rules Governing Installation of Heating, Ventilation, and Air Conditioning Systems · IDAPA 24.39.70.100 · Idaho Division of Occupational and Professional Licenses · Admin Rule · verified September 15, 2026Section 100.02 journeyman: pass the board exam and either 8,000 hours of apprentice work experience plus 576 hours of board-approved instruction, or 16,000 hours of HVAC experience; may sit for the exam after either the 576 hours or the 16,000 hours. Section 100.03 contractor: pass the board-designated examination and provide a $2,000 compliance bond effective for the certificate period. Section 100.04 specialty journeyman (hearth appliances, non-duct-connected oil furnaces and their gas piping and venting): 2,000 hours of specialty experience plus the board exam or 60 hours of fuel gas education. No reciprocity or endorsement provisions. The redirect from adminrules.idaho.gov to files.dfm.idaho.gov was followed.

Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.

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