Idaho HVAC License Requirements (2026)

The Idaho Heating, Ventilation and Air Conditioning Board, within the Division of Occupational and Professional Licenses (DOPL), licenses HVAC apprentices, journeymen, specialties, and contractors statewide. Idaho uses a Journeyman HVAC credential for qualified trade work and an HVAC Contractor certificate for offering HVAC contracting services. The separate Idaho general contractor registration is not required for licensed HVAC work performed within the trade’s licensed scope, but may apply to work outside it.

Regulatory Body

Idaho Division of Occupational and Professional Licenses — Heating, Ventilation and Air Conditioning Board (Idaho HVAC Board) is the statutory authority responsible for issuing and enforcing this license under Idaho Code Title 54, Chapter 50; Idaho HVAC Board rules. Issues HVAC apprentice, journeyman, specialty, and contractor credentials and administers the state HVAC permitting and inspection program.

Official portal: https://dopl.idaho.gov/hvac/
Address: 11341 W. Chinden Blvd., Boise, ID 83714
Phone: (208) 334-3233

Eligibility Requirements

This guide does not establish a minimum applicant age; confirm any age requirement with the issuing authority. Check the current application for identification and tax-number requirements. The current Board materials reviewed do not impose an Idaho-residency requirement.

Good moral character

The current licensing materials reviewed focus on application, qualification, examination, fee, and contractor-bond requirements.

Background investigation

The current Board materials reviewed do not prescribe a separate criminal-background-check requirement.

Experience and Education

The experience bar is 4 years of The published Journeyman route is four years (8,000 hours) of HVAC work as a registered apprentice under qualified supervision, together with the required Board-approved training. The current rule materials also describe an out-of-state/equivalent experience route. An individual Contractor applicant needs an active Idaho Journeyman credential; an entity must employ at least one active Idaho HVAC Journeyman. Verify the current experience route with DOPL before filing because it differs by applicant history and specialty., and it must be backed by verifiable records — typically payroll, tax, project, or supervisor documentation covering the claimed period.

Accepted proof of experience or eligibility

Active Idaho HVAC apprentice-registration history, where applicable
Board-approved training completion documentation
Employer, supervisor, or out-of-state experience documentation required for the applicable route
Active Idaho Journeyman HVAC credential for an individual Contractor application, or the employing entity’s qualifying Journeyman credential

Education substitution

The Journeyman apprenticeship route includes Board-approved training. Do not assume an education-for-experience substitution unless DOPL accepts it for the specific application route.

Exam Requirements

Testing provider or authority: PSI, for the Idaho HVAC Board/DOPL. The following examination requirements cover the pathways described in this guide; follow each part's classification, waiver, and local-scope conditions. Unpublished format details do not remove an examination requirement:

Idaho Journeyman HVAC examination — 100 questions, 240 minutes, passing score: confirm in the current candidate bulletin
Idaho HVAC Contractor examination — 110 questions, 240 minutes, passing score: confirm in the current candidate bulletin

Examination fee: $75 examination fee shown in DOPL’s current PSI program information; verify at registration.

Retake policy: Use the current PSI candidate bulletin for retake timing and any additional requirements. After passing, applicants must still apply to DOPL for the credential.

Insurance and Bonds

The applicant must secure and file a $2,000 surety bond before the Idaho HVAC Board will release the license.

General liability

DOPL’s current HVAC contractor application requires a $2,000 HVAC contractor compliance bond after the examination is passed. The trade-licensing materials reviewed do not state a separate statewide general-liability minimum for the HVAC certificate.

Workers' compensation

Licensed HVAC professionals are exempt from Idaho contractor registration while they contract only within their licensed scope. If general contractor registration is required for other work, its separate workers’ compensation and liability requirements apply.

Additional financial requirements

No state financial-statement requirement was identified for the Journeyman HVAC or HVAC Contractor certificate.

Fee Schedule

Fee	Amount
Application	$35
Examination	$75
Initial license	$225
Renewal (every 3 years)	$150

To turn these board fees into a realistic year-one budget — bond premium, liability insurance, and exam prep included — open the cost calculator preloaded for Idaho hvac.

Renewal and Continuing Education

The Idaho Journeyman HVAC and HVAC Contractor runs on a 3 years renewal cycle. The current renewal fee is $150. Current DOPL fee table: Journeyman renewal $75; HVAC Contractor renewal $150. Verify the credential’s own expiration date and renewal notice.

Continuing education: No HVAC CE is required according to DOPL’s current HVAC FAQ.

Downloadable Asset

2026 Idaho HVAC License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Reciprocity

For this classification, Idaho does not recognize the NASCLA Accredited Examination.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

DOPL confirms that Idaho has reciprocal licensing agreements and directs applicants to the current Reciprocal Information document. Do not rely on older named-state lists; confirm the agreement and credential level with DOPL.

Weighing more than one jurisdiction? The national hub compares published HVAC license requirements by state — exam, bond, fee, and experience thresholds side by side.

HVAC Licensing in Neighboring States

Contractors working near a state line, or weighing where to qualify first, should compare Idaho's requirements against the bordering jurisdictions before committing to an application:

Montana HVAC License Requirements — Montana HVAC — No Standalone State Trade License
Nevada HVAC License Requirements — Nevada C-21 Refrigeration and Air-Conditioning Contractor
Oregon HVAC License Requirements — Oregon HVAC Contractor Requirements (CCB and Applicable BCD Electrical Licenses)
Utah HVAC License Requirements — Utah H100 HVAC Contractor License
Washington HVAC License Requirements — Washington Specialty Contractor — Heating and Air Conditioning
Wyoming HVAC License Requirements — Wyoming HVAC Contractor — Local Mechanical License; State Electrical Scope

Step-by-Step Application Roadmap

Hold the appropriate Idaho apprentice registration. Use active apprentice registration while gaining in-state qualifying experience.
Complete the qualifying Journeyman route. Document the published four-year/8,000-hour supervised-work and approved-training route, or the applicable out-of-state/equivalent route.
Take the PSI Journeyman examination. Select the Idaho examination and current candidate bulletin in the PSI system; DOPL lists a $75 exam fee.
Apply to DOPL for Journeyman licensure. Submit the required qualification and examination documentation through the DOPL licensing system.
Apply for an HVAC Contractor certificate when offering services to the public. An individual applicant must hold an active Idaho HVAC Journeyman license; an entity must employ one. Pass the contractor examination and file the $2,000 bond before issuance.
Use the correct general-registration scope. Idaho’s general contractor registration may apply outside the HVAC licensed scope; it is not required for licensed HVAC work within scope.
Renew on the Board’s three-year cycle. Check DOPL’s portal and current fee table for the credential’s exact expiration date and renewal procedure.

Application Checklist

Before submitting to Idaho HVAC Board, the applicant should have each of the following ready:

Maintain the appropriate Idaho HVAC apprentice registration while earning in-state experience
Document the four-year/8,000-hour supervised-work and approved-training route, or the applicable equivalent route
Review the current PSI candidate bulletin and pass the Journeyman examination
Apply to DOPL with the listed application and initial-license fees
For the HVAC Contractor certificate, the individual applicant must hold—or the entity must employ—an active Idaho HVAC Journeyman; pass the contractor exam and file the $2,000 bond
Verify reciprocity with DOPL using the current agreement document

Common Filing Mistakes

The following pitfalls summarize the issues most likely to delay, return, or derail a Idaho HVAC application based on the published board instructions and source materials cited on this page.

Confusing a Journeyman credential with a contractor certificate

The contractor credential requires the qualifying Journeyman credential, contractor examination, and $2,000 bond before offering HVAC contracting services.

Using an old reciprocity list

DOPL’s current materials direct applicants to a current reciprocal-information document. Confirm the exact agreement and credential first.

Adding unrelated general-contractor registration unnecessarily

Licensed HVAC work within the HVAC scope is exempt from general contractor registration, but other construction work can change that result.

Preparing with an outdated candidate bulletin

DOPL directs candidates to PSI’s current bulletin for the particular examination; reference materials and procedures can change.

Study and Reference Materials

The list below collects the board's cited references and the materials applicants typically study from. CLR is not paid to recommend any of them.

DOPL HVAC candidate bulletin — Idaho DOPL / PSI. Primary source for the current exam blueprint, permitted references, and test-center procedures.
Idaho current HVAC code list — Idaho DOPL. DOPL lists the current statewide HVAC code references on its Board page.
DOPL Contractors’ Business and Law Reference Manual — Idaho DOPL. DOPL directs contractor candidates to this official manual.

Other Idaho Trade Licenses

For a different Idaho credential, see these companion guides published by CLR:

Frequently Asked Questions

Who licenses HVAC professionals in Idaho?

The Idaho HVAC Board, within DOPL, licenses HVAC apprentices, journeymen, specialties, and contractors statewide.

How long does the Idaho Journeyman HVAC route take?

The published apprenticeship route is four years and 8,000 hours of supervised HVAC work together with Board-approved training.

Which codes does Idaho use for HVAC work?

DOPL’s current HVAC page lists the 2018 International Residential Code, International Fuel Gas Code, and International Mechanical Code. Confirm current local permit and code requirements before work.

Does Idaho require HVAC continuing education?

No. DOPL’s current HVAC FAQ states that Idaho has no HVAC continuing-education requirement.

What bond does an Idaho HVAC Contractor need?

DOPL’s contractor-application materials require a $2,000 HVAC contractor bond before the contractor certificate is issued.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-09-04 · Next scheduled review 2026-12-03

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Corrections and presentation updates

2026-09-30: Corrected examination detection when format details are unpublished and updated the summary layout and requirements score. Source-check dates are unchanged.
2026-09-08: Shared template updated to distinguish unspecified eligibility requirements, retain cost qualifications, and use consistent headings. Source-check dates are unchanged by presentation updates.
2026-09-21: Local-only guides now use a compliance-focused structure and terminology instead of implying a statewide license application. Source-check dates are unchanged by this presentation update.