Oklahoma Residential Electrical Contractor
Practice exams for the Oklahoma Residential Electrical Contractor exam, on the 2023 NEC, weighted like the real outline.
Every plan includes
- 710+ practice questionsOn the 2023 NEC, across all 12 content areas
- Unlimited 80-question timed exams3 h 30 min, the same length as the real exam
- Every answer cites the 2023 NECExplained, with the section it comes from
What’s included
Every plan includes all of it. Plans differ only in how long you have access and how you are billed.
- Custom study sessionsPick how many questions and which areas to drill, and study untimed.
- Explanations that cite the codeEvery answer says why, with the 2023 NEC section it comes from.
- Weak-area analyticsYour results by area show what to study next.
- Real human supportEmail us any time and a person answers.
Choose your plan
Same full access on every plan. Pick how long you want it; cancel anytime.
How the real exam is built
The real exam: 80 questions across 12 areas in 3 h 30 min. Our timed exams use the same areas and weights.
You need 70% overall. Calculations sit inside the outline areas rather than in a separate portion.
Residential Electrical Contractor trade exam
80 scored · 210 min- General Knowledge4
- General Electrical Knowledge12
- Electrical Installation Requirements10
- Services, Feeders, and Branch Circuits10
- Overcurrent Protection8
- Grounding and Bonding8
- Conductors and Cables8
- Raceways and Boxes6
- Special Occupancies and Equipment4
- Low Voltage, Alarms, Signaling, and Communications2
- Lighting and Signs4
- Safety4
About the Oklahoma Residential Electrical Contractor
Granted by Oklahoma Construction Industries Board (CIB)
Oklahoma Construction Industries Board Residential Electrical Contractor trade exam (PSI): 80 questions in 3.5 hours, open book on the 2023 NEC as adopted by the OUBCC, 29 CFR 1926 and Ugly's, 70% to pass.
Eligibility Requirements
You must have passed the residential or unlimited journeyman exam and hold two years as a licensed journeyman, with at least 4,000 hours as a residential or unlimited journeyman employed and supervised by an unlimited or residential electrical contractor. The license covers one- and two-family dwellings only.
On the 2023 NEC since December 14, 2024
Study material written for the previous edition teaches these wrong. Every question here is grounded in the 2023 NEC.
| Topic | Previous edition | 2023 NEC |
|---|---|---|
| Non-dwelling general lighting unit loads220.42 | Table 220.12 | Table 220.42(A) |
| Lighting load demand factors220.45 | Table 220.42 | Table 220.45 |
| Non-dwelling receptacle demand factors220.47 | Table 220.44 | Table 220.47 |
| EV charging load in a load calculation220.57 | No rule | 7,200 VA or the nameplate, whichever is larger |
| Class 1 remote-control and signaling circuitsArticles 722, 724 | Article 725 | Article 724 (general rules in Article 722) |
Scheduling & Fees
Where to take it
- Administered by
- PSI
- Phone
- (855) 834-8750
- Scheduling window
- Pass both portions (trade and Business and Law) within three years of the date CIB approves you to test, or you retake both.
- Retake policy
- You need 70% on each portion. Wait 30 days after a failed exam, and 30 days after each later failure; no attempt limit is stated, and you pay the PSI fee each time.
Fees
- CIB contractor application fee
- $30
- Initial contractor license ($480 from July 1, 2028)
- $300
- PSI exam fee, per portion (trade and Business and Law are separate)
- $92
- Annual renewal
- $200
- Late renewal (more than 30 days after expiration)
- $300
Keeping Your Certification Active
Renewal requirements
- Cycle
- Annual (expires the last day of your birth month)
- Continuing education
- 12 hours — 12 hours every 3 years from Committee-approved courses: 6 on the codes adopted by the Oklahoma Uniform Building Code Commission and 6 on other approved electrical topics. You are exempt for 3 years after passing your exam.
Reciprocity
CIB's published reciprocity agreements are for journeyman licenses (Alaska, Arkansas, Colorado, Idaho, Iowa, Montana, Nebraska, South Dakota, Texas and Wyoming). A contractor who qualifies under a written contractor agreement is licensed as a journeyman, then as a contractor after passing the Oklahoma Business and Law exam and filing bond and insurance; exam equivalency can waive the trade exam but never Business and Law.
Sources: PSI Oklahoma Electrical, Mechanical, Roofing and Plumbing Candidate Information Bulletin (effective 9/11/2026) · OAC 158:40 — Electrical Industry Regulations (effective 7/11/2026) · Oklahoma Statutes Title 59 — Electrical License Act (59 O.S. 1680 et seq.) · CIB — Electrical licensing · CIB — Guidelines for electrical license through reciprocity · OUBCC — National Electrical Code adoptions (OAC 748:20-10)
Frequently asked questions
How is the Oklahoma Residential Electrical Contractor exam structured?+
One PSI trade exam of 80 questions in 3½ hours, open book, and you need 70%, or 56 correct. It has the same 12 areas and counts as the Residential Journeyman exam: general electrical knowledge is the largest at 12, installation requirements and services, feeders and branch circuits carry 10 each, and special occupancies covers only mobile homes, RVs and pools. There is no motors and transformers area.
What work does a residential contractor license cover?+
One- and two-family dwellings: a single structure with no more than two dwelling units and at least five feet of separation from any other dwelling or structure, such as a house or a duplex. Apartments, motels and multi-family townhomes need an unlimited license (OAC 158:40-7-2).
Which code edition is the exam on? Is it changing?+
The 2023 NEC as adopted by the Oklahoma Uniform Building Code Commission (OUBCC), which Oklahoma exams have used since December 14, 2024. Two Oklahoma amendments change answers: listed HVAC equipment keeps its exemption from the outdoor-outlet GFCI rule in 210.8(F) with no expiration date, and an added 422.16(B)(5) lets a gas-fired central furnace in a dwelling be cord-and-plug connected with a cord no longer than 9 feet. None of the informative annexes is adopted. OUBCC's 2026 NEC Technical Review Committee began meeting on September 9, 2026, but no adoption or effective date has been set. When Oklahoma moved to the 2023 NEC, CIB gave a 90-day testing grace period before the exams switched.
Is it open book? What can I bring?+
Yes, with three books: the 2023 NEC (no NEC Handbook and no spiral-bound copies), 29 CFR 1926 (the OSHA construction standards, or PSI's selections from them) and Ugly's Electrical References, any edition. Highlighting, underlining and permanent tabs are allowed; writing in the books is not. Bring a silent, non-programmable calculator.
Do I also take a business and law exam?+
Yes. Every Oklahoma electrical contractor license takes two passed portions: this trade exam and the separate 50-question Electrical Business and Law exam, each at 70%. A passed portion stays good for three years from the date CIB approves you to test; after that you retake both. If you already hold an Oklahoma electrical contractor license and passed Business and Law for it, a new contractor category does not require it again.
What does it cost, and what if I fail?+
PSI charges $92 per portion, so $184 for the trade exam and Business and Law together. You need 70% on each. After a failed attempt you wait 30 days before any electrical exam, and no attempt limit is stated. Up to 10 unscored experimental questions may be added, and their time does not count against you.
What do I need after I pass?+
CIB charges a $30 contractor application fee and $300 for the initial license (Senate Bill 1732 raises the initial contractor license to $480 from July 1, 2028). An active license also needs a $5,000 license bond, a general liability certificate of at least $50,000 combined single limit with CIB as certificate holder, and proof of workers' compensation coverage or an exemption. Without them CIB issues an inactive contractor license, which lets you work as a journeyman but not contract.
How often do I renew?+
Every year, by the last day of your birth month: $200, or $300 if you renew more than 30 days late. You need 12 hours of continuing education every 3 years, 6 of them on the codes OUBCC adopts, and you are exempt for the first 3 years after passing your exam. From November 1, 2026, a license expired for more than a year can be reinstated without retesting by paying the renewal fee and a $200 penalty and completing the missed continuing education.
What do I need before I can sit the exam?+
You must be 18 or older, have passed the residential or unlimited journeyman exam, and show two years as a licensed journeyman with at least 4,000 hours as a residential or unlimited journeyman employed and supervised by an unlimited or residential electrical contractor.
Is the residential code (IRC) on the exam?+
No. The exam lists only the 2023 NEC, OSHA 29 CFR 1926 and Ugly's. Our questions answer strictly from the NEC as Oklahoma adopts it.
Can I use a license from another state?+
Oklahoma's published reciprocity agreements cover journeyman licenses: Alaska, Arkansas, Colorado, Idaho, Iowa, Montana, Nebraska, South Dakota, Texas and Wyoming, for a license earned by exam and held at least a year. A contractor who qualifies under a written contractor agreement is first licensed as a journeyman and becomes a contractor after passing the Oklahoma Business and Law exam and filing the bond and insurance. From a state with no agreement, CIB may approve exam equivalency, which waives this trade exam but not Business and Law.
Ready to pass your exam?
Practice the full exam on the current code, with every calculation worked out.
Start Studying Today →