Oklahoma Contractor License Exam Guide (2026)

How Oklahoma licenses contractors

The Construction Industries Board (CIB) licenses commercial and residential contractors plus electrical, mechanical, plumbing, and roofing trades. Applicants submit experience affidavits, bonding, liability insurance, and pass PSI trade exams along with the Business & Law module. NASCLA satisfies the Commercial Building exam for many classifications.

Licensing questions cover EF5 tornado wind loads, 120-degree heat safety, gypsum sinkholes, and oilfield electrical classifications. Expect FEMA safe-room standards, ER heat protocols, and corrosion control.

Official source: Oklahoma Construction Industries Board

Oklahoma contractor license types

Commercial endorsements require a $5,000 or $10,000 surety bond and proof of general liability. Roofing contractors must carry $1 million liability and register annually even if they hold other classifications.

What's on the Oklahoma contractor exam

PSI centers operate in Oklahoma City, Tulsa, Lawton, Woodward, McAlester, and via remote proctoring.

What Oklahoma exam questions emphasize

• International Building/Residential Codes with Oklahoma amendments
• Safe room construction (ICC 500) and FEMA tornado guidance
• Lien law (Title 42) and prompt-pay rules
• OSHA heat illness, confined-space, and refinery safety requirements

Exam-day logistics

• Bring two IDs, approval letter, and allowed references
• NASCLA candidates must have transcripts sent directly to CIB
• Scores print immediately; submit bond, insurance, and fees for activation

Who needs an Oklahoma contractor license (and who does not)

CIB commercial Building candidates may use NASCLA, but residential and trade endorsements are separate fee/exam stacks.

Most-missed Oklahoma contractor exam topics

Safe-room construction and Oklahoma lien timing create misses beyond generic IBC drills.

• IBC/IRC with Oklahoma amendments under timed conditions
• ICC 500 safe-room construction and FEMA tornado guidance
• Lien law (Title 42) and prompt-pay rules
• Endorsement stacking costs after the primary license exam
• Residential vs commercial bulletin mix-ups before test day

Trade-specific exam guides

If you're licensing in a single trade rather than the Oklahoma general contractor classification, the dedicated trade hub will get you to the right code book and exam structure faster.

• General contractor exam guide — IBC/IRC, NASCLA acceptance, and Business & Law.
• Electrical contractor exam guide — NEC (NFPA 70) calculations and grounding/bonding.
• Plumbing contractor exam guide — IPC/UPC drainage sizing, venting, and backflow.
• HVAC contractor exam guide — IMC ventilation, refrigerant management, and load calcs.

Oklahoma code books & approved references (2026)

Always confirm the exact editions and tab rules in your candidate bulletin before exam day. Editions can change between license cycles.

• International Building Code 2018
• International Residential Code 2018
• ICC 500 Tornado and Hurricane Safe Rooms
• Contractor's Guide to Business, Law and Project Management - Oklahoma Edition
• Oklahoma lien law (Title 42)
• OSHA 29 CFR 1926

Fees & timeline for the Oklahoma contractor license

• $75 application fee per classification
• $100 license fee plus $25 endorsement fee
• $76 PSI trade exam fee and $76 Business & Law fee
• Surety bonds ($5k-$10k) and $1M liability for roofing
• Continuing education for electrical and mechanical trades (6 hours biennially)

Use the All States hub for budgeting; confirm fees with CIB before filing.

Oklahoma Business & Law focus

The Oklahoma Business & Law exam covers licensing statutes, lien law, tax registration, insurance, and safety.

• Know Title 59 licensing and penalty provisions
• Understand mechanics lien filing deadlines (four months for contractors)
• Register for withholding and sales tax with the Oklahoma Tax Commission
• Maintain workers-comp or approved exemptions

Practice with our Oklahoma CIB law prep and the national Business & Law exam hub for cross-state baseline rules.

A focused 4-week study plan for the Oklahoma exam

Because Licensing questions cover EF5 tornado wind loads, 120-degree heat safety, gypsum sinkholes, and oilfield electrical classifications, this four-week outline targets what Oklahoma field inspectors and your licensing board exam items actually test—not generic national prep.

1. Week 1 — Map the exam. Pull your current candidate bulletin, list every reference, and confirm the modules you have to pass. Start a one-page error log. Spend extra time on: International Building/Residential Codes with Oklahoma amendments.
2. Week 2 — Code book navigation. Drill open-book lookups (or memorisation drills if your module is closed-book) until you can find any answer in under 60 seconds. Anchor practice around: Safe room construction (ICC 500) and FEMA tornado guidance.
3. Week 3 — Business & Law. The Oklahoma Business & Law exam covers licensing statutes, lien law, tax registration, insurance, and safety. Layer in scenario-based questions on contracts, lien notice, payroll, and insurance.
4. Week 4 — Full simulations. PSI centers operate in Oklahoma City, Tulsa, Lawton, Woodward, McAlester, and via remote proctoring. Run two full-length timed simulations. Review every miss with a one-sentence rule statement.