Oklahoma HVAC License Requirements (2026)

The Oklahoma Construction Industries Board (CIB) licenses HVAC and mechanical trades statewide under Oklahoma Statutes Title 59 §1680.2 (the Mechanical Licensing Act). Oklahoma issues classified credentials by sub-trade — Mechanical Journeyman and Mechanical Contractor in HVAC/Refrigeration, Sheet Metal, Process Piping, and Hydronics. The HVAC/Mechanical Journeyman path requires three years of qualifying experience plus a PSI exam at 75%. The Mechanical Contractor business license requires an active Journeyman as the qualifying party, a $5,000 surety bond, and insurance. Oklahoma City and Tulsa accept the CIB credential — there is no separate municipal HVAC exam.

Regulatory Oversight

This license is issued and enforced by Oklahoma Construction Industries Board (CIB) pursuant to Oklahoma Statutes Title 59 §1000 et seq. (plumbing) and §1680 et seq. (electrical and mechanical/HVAC). The Oklahoma Construction Industries Board licenses individual journeymen and contractors for the electrical, plumbing, and mechanical (HVAC/refrigeration) trades statewide, administers PSI examinations, and conducts disciplinary proceedings. Oklahoma has no statewide general contractor license — general contracting is regulated by individual cities.

Official portal: https://oklahoma.gov/cib.html
Address: 2401 NW 23rd Street, Suite 2F, Oklahoma City, OK 73107
Phone: (405) 521-6550

Who May Apply

An applicant qualifies only after meeting the age floor of 18 and producing a valid Social Security Number. No Oklahoma residency requirement.

Good moral character

CIB conducts a fitness review on every applicant. Felony convictions are reviewed individually under Title 59 rules.

Background investigation

Mandatory criminal history disclosure on the application; CIB may request additional documentation.

Required Experience and Education

The applicant must document and verify at least three years of qualifying mechanical/HVAC experience as a registered Apprentice or under the supervision of a Mechanical Journeyman or Contractor in the applied-for classification (HVAC/Refrigeration, Sheet Metal, Process Piping, or Hydronics). Keep payroll, tax, project, or supervisor records to support the claim, as the board can request proof for any period within its lookback window.

Accepted proof of experience or eligibility

CIB Mechanical Experience Affidavit signed by each supervising Journeyman or Mechanical Contractor
W-2 statements, pay stubs, or 1099 records covering the qualifying period
Approved HVAC apprenticeship completion certificate (where applicable)
EPA Section 608 Universal Technician Certification

Education substitution

Accredited HVAC trade school or community college coursework may substitute for up to one year of the experience requirement on a sliding scale set by CIB rule. Approved DOL apprenticeship completion satisfies the experience requirement in full.

Examination Requirements

The licensing examination is delivered by PSI Services LLC under contract to the Oklahoma CIB. All of the following parts must be cleared prior to issuance:

Oklahoma Mechanical Journeyman Examination — International Mechanical Code, International Fuel Gas Code, Oklahoma mechanical rules — 80 questions, 240 minutes, passing score 75%
Oklahoma Mechanical Contractor Examination — business and law (contractor applicants only) — 50 questions, 120 minutes, passing score 75%

Examination fee: $87 per PSI exam part paid on the day of testing.

Retake policy: Failed parts may be re-taken individually by paying a new $87 fee. CIB allows unlimited retakes within the one-year application validity.

Insurance and Financial Requirements

The CIB requires a $5,000 contractor license surety bond to be on file before the license will issue.

General liability

Mechanical Contractors must carry general liability insurance with minimum coverage of $50,000 property damage and $100,000 bodily injury per occurrence under Title 59 §1680.10. Most commercial owners contractually require $1,000,000/$2,000,000.

Workers' compensation

Workers compensation insurance is mandatory in Oklahoma for any business with employees under the Oklahoma Workers' Compensation Act.

Additional financial requirements

Mechanical Contractors must post a $5,000 surety bond with the CIB. No separate financial statement is required for the journeyman credential.

Licensing Fees

Fee	Amount
Application (non-refundable)	$100
Examination	$87
Initial license — sole owner	$150
Initial license — non-sole owner	$300
Renewal (every 3 years)	$150

Keeping the License Current

Renewal of the Oklahoma Mechanical Journeyman and Mechanical Contractor (HVAC/Refrigeration) comes due every 3 years. As cited, the renewal fee stands at $150. Oklahoma mechanical credentials renew every three years. Renewal requires current bond and insurance for contractors.

Continuing education: Sixteen hours of CIB-approved continuing education each three-year renewal cycle, including current International Mechanical Code and International Fuel Gas Code update training.

Downloadable Asset

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

Download the PDF roadmap →

Reciprocity and License Transfer

The NASCLA Accredited Examination is not accepted by Oklahoma for this classification.

Reciprocal State	Accepted Exam	Conditions
Texas	Trade exam waived	Bilateral CIB–TDLR Air Conditioning and Refrigeration reciprocity for active license holders in good standing.
Arkansas	Trade exam waived	Bilateral CIB–Arkansas HVACR Licensing Board reciprocity for active mechanical contractors.
Kansas	Trade exam waived	Bilateral CIB–Kansas reciprocity through participating local jurisdictions.
New Mexico	Trade exam waived	Bilateral CIB–New Mexico Construction Industries Division reciprocity for active mechanical contractors.

Reciprocal applicants must still pass the Oklahoma business and law portion if applying for a Mechanical Contractor license. Reciprocity does not waive the bond, insurance, EPA 608, or business registration requirements.

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

Application Process, Step by Step

Earn EPA Section 608 Universal certification. Required for any technician handling refrigerant. Take the certification through an EPA-approved provider before logging refrigerant work.
Accumulate 3 years of qualifying mechanical experience. Work under a Mechanical Journeyman or Contractor in the applied-for classification and document hours on the CIB experience affidavit.
Submit the CIB Mechanical Journeyman application. File the Mechanical Journeyman application with the experience affidavit, EPA 608 card, fee, and identity documents.
Pass the PSI Journeyman exam at 75%. Score 75% or better on the 80-question PSI exam covering the International Mechanical Code, International Fuel Gas Code, and Oklahoma rules.
Receive the Mechanical Journeyman credential. CIB issues the journeyman credential after the exam is passed. The credential renews every three years.
Apply for the Mechanical Contractor license (optional). Submit the Mechanical Contractor application designating an active Journeyman as the qualifying party. Pass the business and law exam at 75%.
Post the bond and file insurance. Post a $5,000 surety bond with the CIB and file proof of general liability and workers compensation insurance to activate the contractor license.

Recommended References

These are the preparation and reference materials tied to this credential — cited by the regulator or widely used by applicants. CLR earns nothing from listing them.

International Mechanical Code, Oklahoma-adopted edition — International Code Council. Primary technical reference. Open-book at the PSI test center.
International Fuel Gas Code, Oklahoma-adopted edition — International Code Council. Required reference for fuel gas piping and combustion air sections of the exam.
Oklahoma Statutes Title 59 §1680.2 (Mechanical Licensing Act) — State of Oklahoma. Licensing law for HVAC/mechanical contractors.

Frequent Application Errors

Based on the board's own instructions and the sources cited here, the problems below are what most often stall a Oklahoma HVAC application.

Skipping EPA 608 certification

EPA Section 608 is federally required for anyone handling refrigerant. CIB rejects journeyman applications missing the EPA 608 card.

Choosing the wrong classification

Oklahoma issues separate mechanical classifications (HVAC/Refrigeration, Sheet Metal, Process Piping, Hydronics). Working outside the licensed classification is a violation.

Underestimating the 75% passing score

Oklahoma requires 75% to pass — five points higher than many neighboring states. The combined IMC/IFGC scope makes the exam denser than HVAC-only exams in other states.

Confusing Journeyman with Mechanical Contractor

The Journeyman credential authorizes you as an individual; you still need a separate Mechanical Contractor license, bond, and insurance to operate as a business.

Missing CE for renewal

Sixteen hours of CIB-approved CE every three years is mandatory, including current IMC and IFGC update training. Missing CE blocks renewal and triggers monthly late fees.

Document Checklist

The items below are the ones worth confirming before the application is filed with CIB:

☐ EPA Section 608 Universal Technician certification card
☐ Experience affidavit covering 3 years of supervised mechanical work
☐ CIB Mechanical Journeyman application with $100 fee
☐ PSI Journeyman exam pass certificate at 75%+
☐ PSI business and law exam pass certificate (Mechanical Contractor only)
☐ $5,000 surety bond on file with CIB (Mechanical Contractor only)
☐ General liability and workers compensation insurance certificates

Other Oklahoma Trade Licenses

Should the HVAC path not apply, these other Oklahoma trade guides from CLR may help:

Questions Applicants Ask

Who licenses HVAC technicians in Oklahoma?

The Oklahoma Construction Industries Board (CIB) licenses HVAC and mechanical trades statewide under Title 59 §1680.2. Oklahoma City and Tulsa accept the CIB credential — there is no separate municipal HVAC license.

How much experience does Oklahoma require for an HVAC Journeyman?

Three years of qualifying mechanical experience under the supervision of a licensed Mechanical Journeyman or Contractor in the applied-for classification (HVAC/Refrigeration, Sheet Metal, Process Piping, or Hydronics).

What is the passing score on the Oklahoma HVAC exam?

75 percent. PSI administers the exam under contract to CIB. The Journeyman exam is 80 questions covering the International Mechanical Code, International Fuel Gas Code, and Oklahoma mechanical rules.

Do I need EPA Section 608 certification?

Yes. Any technician handling refrigerant must hold the EPA Section 608 Universal Technician certification under federal law. CIB requires the EPA 608 card on file with the journeyman application.

Does Oklahoma reciprocate HVAC credentials?

Yes. Oklahoma has bilateral reciprocity with Texas, Arkansas, Kansas, and New Mexico for active mechanical contractors. Reciprocal applicants must still pass the Oklahoma business and law portion to obtain a contractor license.

Primary Sources

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

Verified 2026-05-09 · Next scheduled review 2026-08-07