Oklahoma Residential Electrical Contractor - Online Exam Prep Course

Prepare for the Oklahoma Residential Electrical Contractor examination with an online exam prep course focused on the electrical knowledge, code navigation, calculations, safety requirements, residential installation practices, and reference materials used for the current licensing test. This course is designed for experienced electricians advancing from journeyman-level work toward the Oklahoma Residential Electrical Contractor license administered by the Oklahoma Construction Industries Board.

The Residential Electrical Contractor license is a contractor-level credential. Oklahoma's licensing pathway generally progresses from registered electrical apprentice to licensed journeyman and then to electrical contractor after the required experience has been completed. A contractor license represents the highest electrical licensing level in the state's trade career pathway and allows the qualified license holder to operate an electrical contracting business within the scope of the license.

The Oklahoma Residential Electrical Contractor classification is limited to residential electrical contracting within the scope established by state law and Construction Industries Board rules. The state's current contractor information describes the residential classification as contracting for wiring buildings defined by the National Electrical Code as one- and two-family dwellings.

The current Oklahoma Residential Electrical Contractor examination is administered by PSI after the Oklahoma Construction Industries Board approves the applicant to test. The examination contains 80 scored questions, provides 210 minutes, and requires a 70% passing score.

This online exam prep course uses the primary references identified for the current examination: the 2023 National Electrical Code as revised and adopted by the Oklahoma Uniform Building Code Commission, Code of Federal Regulations - 29 CFR Part 1926 for construction safety, and Ugly's Electrical References for practical electrical formulas, calculations, and trade information.

Exam Details

The Oklahoma Residential Electrical Contractor examination is part of the statewide electrical licensing program overseen by the Oklahoma Construction Industries Board. Applicants must satisfy the contractor experience requirements and receive approval from the Board before scheduling the examination with PSI.

The current examination consists of 80 scored items with a testing period of 210 minutes. Candidates must earn at least 70% correct to pass, which equals 56 correct answers on the 80 scored questions.

The current examination outline assigns 4 questions to General Knowledge. Subjects include permits and inspections, preservation of structural integrity, needs analysis, and estimating.

General Electrical Knowledge contains 12 questions. This section covers voltage, current, resistance, series and parallel circuits, electrical power, power loss, alternating-current theory, three-phase theory, cost of power, troubleshooting, NEC navigation, definitions, temporary wiring, elevators, and escalators.

Electrical Installation Requirements contain 10 questions. Candidates should understand approved methods for installing electrical equipment and the broader principles governing safe and code-compliant electrical construction.

Services, Feeders, and Branch Circuits contain 10 questions. This section includes services, voltage drop, feeders, outside branch circuits and feeders, branch circuits, space heating, snow melting, pipe heating, and air-conditioning and refrigeration equipment.

Overcurrent Protection contains 8 questions, while Grounding and Bonding contains 8 questions. Together, these subjects represent one-fifth of the scored examination and should receive substantial preparation time.

Conductors and Cables contain 4 questions. The outline covers conductor selection and multiple cable types, including AC, MC, NM, NMC, NMS, SE, USE, UF, MI, and other wiring systems.

Raceways and Boxes contain 6 questions. Candidates should be prepared for raceway requirements, conduit types, boxes, fittings, conduit fill, box volume and fill, wireways, gutters, busways, and other raceway systems.

Special Occupancies and Equipment contain 8 questions, including mobile homes, recreational vehicles, swimming pools, fountains, and hot tubs. Low Voltage, Alarms, Signaling Systems, and Communications contain 4 questions, while Lighting and Signs contain 2 questions.

The remaining 4 questions cover Safety, including PPE, excavation safety, emergency procedures, ladders, scaffolds, fall protection, tools, workplace illumination, hazardous materials, material handling, and related construction practices.

Open Book Test

The Oklahoma Residential Electrical Contractor examination is an open-book test. Candidates are responsible for bringing their approved references to the testing center and must follow PSI's current rules for preparing and using those materials.

The 2023 National Electrical Code, as revised and adopted by the Oklahoma Uniform Building Code Commission, is the code reference identified for the current Residential Electrical Contractor examination. NEC Handbooks and spiral-bound copies of the National Electrical Code are not permitted in the testing center.

Approved references may be highlighted, underlined, and indexed before the examination. Permanent tabs are permitted. Temporary removable tabs such as Post-it notes are prohibited.

Written notes may not be added to approved references before or during the examination. Additional loose papers are also prohibited. Downloaded reference material must be properly bound, placed in a binder, or stapled in accordance with PSI examination rules.

Candidates may use a silent, non-printing, non-programmable calculator. This can be valuable for electrical theory, load calculations, conductor calculations, box fill, voltage relationships, and other mathematical questions.

With 80 scored questions and 210 minutes, candidates have an average of approximately two minutes and 38 seconds per scored question. That makes efficient reference navigation important. An open-book exam does not provide enough time to research every subject from the beginning.

Strong preparation means recognizing whether a question belongs in the NEC, OSHA regulations, or Ugly's Electrical References before beginning a search. Candidates should also practice identifying the likely NEC article or table from the subject of the question.

Licensing Steps

1. Begin with qualifying electrical experience. Oklahoma's electrical career pathway normally begins with registered apprentice experience under appropriate supervision.
2. Earn the Residential or Unlimited Journeyman Electrician license. Residential Electrical Contractor applicants must accumulate contractor-level qualifying experience that includes licensed journeyman work.
3. Complete the required total experience. Oklahoma requires 8,000 verifiable hours of electrical construction experience for the Residential Electrical Contractor classification.
4. Complete the required journeyman experience. At least 4,000 hours must be obtained as a licensed Residential or Unlimited Journeyman Electrician while employed and supervised by an Electrical Contractor.
5. Complete the apprentice portion. The remaining experience includes 4,000 hours as a registered apprentice, or 3,000 registered apprentice hours combined with up to 1,000 hours of qualifying formal electrical education.
6. Establish the required business relationship. An Electrical Contractor must be an owner, partner, or officer in the electrical firm associated with the contractor license.
7. Submit the Electrical License Application. Provide the Oklahoma Construction Industries Board with the required application and experience documentation.
8. Receive examination approval. The Board reviews the application before forwarding an approved candidate's information for testing.
9. Schedule the examination through PSI. Once authorized, select an available test appointment through the state's testing provider.
10. Prepare the approved references. Organize the 2023 NEC, OSHA construction regulations, and Ugly's Electrical References according to current PSI rules.
11. Take the Residential Electrical Contractor examination. Complete the 80 scored questions within 210 minutes.
12. Earn the required passing score. Candidates currently need at least 70% correct.
13. Complete contractor activation requirements. After licensing, satisfy Oklahoma's requirements for maintaining an active electrical contractor license, including applicable business, insurance, bond, and workers' compensation requirements.

State Requirements

Oklahoma requires Residential Electrical Contractor applicants to have 8,000 verifiable hours of qualifying electrical construction experience.

Of those hours, 4,000 must be completed as a licensed Residential or Unlimited Journeyman Electrician while employed and supervised by an Electrical Contractor. This contractor classification is therefore designed for experienced electricians who have progressed beyond apprentice-level training and have substantial licensed journeyman experience.

The other 4,000 hours may consist of registered apprentice experience. Oklahoma also allows a pathway using 3,000 registered apprentice hours plus up to 1,000 hours of formal electrical education.

Formal electrical education credit must consist of actual classroom hours and must be documented with appropriate educational records.

All Oklahoma Electrical Contractors must be an owner, partner, or officer in the electrical firm. Contractor licensing is therefore different from journeyman licensing because it includes responsibility for operating or participating at the ownership or officer level of the contracting business.

The Residential Electrical Contractor classification is limited to residential electrical contracting. Oklahoma's current licensing information defines the scope as contracting for wiring buildings defined by the NEC for one- and two-family dwellings.

Contractor licensing also carries responsibilities that do not apply in the same way to an employee working solely under a journeyman license. Oklahoma identifies contractor licensing as the level that allows a qualified individual to operate a business in the trade and supervise apprentices.

An active Oklahoma electrical contractor must maintain required contractor documentation. Current state requirements include commercial general liability insurance of at least $50,000 and the applicable contractor license bond unless an authorized waiver applies.

Active contractors must also maintain compliance with Oklahoma workers' compensation requirements by providing evidence of coverage or the applicable exemption or self-insurance documentation.

Electrical Contractors and Journeyman Electricians must complete 12 hours of approved continuing education during every 36-month period preceding license expiration. Six hours must cover codes and revisions adopted by the Oklahoma Uniform Building Code Commission.

The remaining six hours may include electrical theory and calculations, wiring methods, grounding and bonding, transformers, motors, electrical circuits and devices, controls, alternative energy systems, energy storage, electrical safety, manufacturer's equipment training, electrical licensing regulations, and other approved trade subjects.

Reference Books

• National Electrical Code, NEC, 2023
  The current Oklahoma Residential Electrical Contractor examination is based on NFPA 70, National Electrical Code, 2023 Edition, as revised and adopted by the Oklahoma Uniform Building Code Commission. The NEC is the primary reference for services, feeders, branch circuits, grounding and bonding, overcurrent protection, conductors, wiring methods, equipment, pools, residential systems, and other code-related questions.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  The current examination reference list includes OSHA construction regulations with the latest available amendments. This reference supports questions involving PPE, excavation, ladders, scaffolding, fall protection, tools, workplace illumination, hazardous materials, material handling, sanitation, and other construction safety subjects.
• Ugly's Electrical References
  Ugly's Electrical References is approved for the current examination, and the PSI bulletin permits any edition. It provides quick access to electrical formulas, theory, calculations, conductor information, motors, transformers, and practical electrical data.

Test Information and Study Materials

A successful Oklahoma Residential Electrical Contractor study plan should be built around the published exam categories and should give extra attention to the highest-value sections.

Prioritize General Electrical Knowledge. With 12 questions, this is the largest individual content category. Review Ohm's Law, power formulas, series and parallel circuits, AC theory, troubleshooting, NEC definitions, and code navigation.

Study Electrical Installation Requirements. Ten questions focus on approved methods of installing electrical equipment. Develop a strong working understanding of how code requirements affect practical residential construction.

Practice Services, Feeders, and Branch Circuits. This section also contains 10 questions. Review residential load calculations, service equipment, feeder sizing, voltage drop, branch circuits, HVAC equipment, and overcurrent protection.

Give Grounding and Bonding dedicated study time. Eight questions address grounding and bonding. Review grounding electrode systems, grounding electrode conductors, equipment grounding conductors, service bonding, and conductor sizing.

Study Overcurrent Protection separately. Another eight questions involve overcurrent requirements. Understand how conductor ampacity, circuit breakers, fuses, equipment ratings, motors, feeders, and branch circuits interact.

Review Special Occupancies and Equipment. Eight questions address specialized systems including swimming pools, fountains, hot tubs, mobile homes, and recreational vehicle installations.

Practice raceway and box calculations. Learn conduit fill and box-fill procedures and become familiar with the NEC tables used to solve these questions.

Know residential cable systems. Review NM, NMC, UF, SE, USE, AC, MC, and other cable types included in the examination outline. Understand permitted uses, installation restrictions, support, protection, and conductor requirements.

Use OSHA efficiently. Safety questions should not lead to unnecessary NEC searches. Learn the organization of 29 CFR Part 1926 so construction-safety answers can be located quickly.

Use Ugly's for electrical formulas and quick-reference information. Familiarity with the book before exam day makes it much more useful during a timed test.

Practice under the 210-minute time limit. Timed practice develops the decision-making required to determine when to research an answer and when to move forward and return to a difficult question later.

Review missed questions by category. Track errors in electrical theory, calculations, NEC navigation, grounding, services, feeders, wiring methods, safety, and special installations. Your weakest categories should receive the most additional study time.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Oklahoma Residential Electrical Contractor candidates organize their study around the subjects and references used for the current licensing examination.

The course emphasizes practical NEC navigation so candidates can learn where important residential requirements are located instead of relying on random code searches. Services, feeders, branch circuits, grounding and bonding, wiring methods, conductors, overcurrent protection, equipment, and special residential installations can be studied in a structured sequence.

Electrical calculation review helps reinforce the problem-solving skills needed for load calculations, conductor selection, voltage relationships, box fill, raceway fill, and other contractor-level electrical questions.

Reference-focused preparation also helps candidates distinguish between the purpose of the 2023 NEC, OSHA 29 CFR Part 1926, and Ugly's Electrical References. Knowing which book is most likely to contain an answer can save valuable time during an open-book examination.

Practice-oriented preparation helps identify areas requiring additional attention before test day. Candidates can use their results to focus future study on electrical theory, calculations, NEC navigation, residential systems, safety, or another weak area.

1 Exam Prep provides organized study guidance, contractor-focused electrical review, practice-oriented preparation, reference navigation, and confidence-building study structure to support experienced electricians working toward the Oklahoma Residential Electrical Contractor license.

FAQ Section

Who licenses Residential Electrical Contractors in Oklahoma?

The Oklahoma Construction Industries Board administers the statewide Residential Electrical Contractor licensing program.

Who administers the Oklahoma Residential Electrical Contractor exam?

PSI currently administers the examination after the Oklahoma Construction Industries Board determines that an applicant is eligible to test.

Is the Oklahoma Residential Electrical Contractor exam open book?

Yes. The current examination is open book and allows approved references under PSI examination rules.

How many questions are on the Residential Electrical Contractor exam?

The current examination contains 80 scored questions.

How much time is allowed?

Candidates currently receive 210 minutes to complete the examination.

What score is required to pass?

The current passing score is 70%, which equals 56 correct answers on an 80-question scored examination.

What NEC edition is used for the Oklahoma Residential Electrical Contractor exam?

The current examination is based on the 2023 National Electrical Code as revised and adopted by the Oklahoma Uniform Building Code Commission.

Can I use an NEC Handbook during the examination?

No. The current PSI bulletin states that NEC Handbooks are not permitted in the testing center for this examination.

Can I use permanent tabs in my reference books?

Yes. Permanent tabs are currently permitted. Temporary removable tabs such as Post-it notes are not allowed.

Can I highlight and underline my books?

Yes. Approved references may be highlighted, underlined, and indexed before the examination.

Can I write notes in my examination references?

No. Current PSI rules prohibit written notes in approved reference materials before or during the examination.

How much experience is required for an Oklahoma Residential Electrical Contractor license?

Applicants need 8,000 verifiable hours of qualifying electrical construction experience, including 4,000 hours as a licensed Residential or Unlimited Journeyman Electrician.

Can electrical education count toward the experience requirement?

Yes. The Residential Electrical Contractor pathway can include up to 1,000 hours of qualifying formal electrical education together with 3,000 registered apprentice hours and the required 4,000 journeyman hours.

Do I need to be an owner or officer of the electrical business?

Oklahoma requires an Electrical Contractor to be an owner, partner, or officer in the electrical firm.

What type of work does the Residential Electrical Contractor license cover?

The Residential Electrical Contractor classification is limited to electrical contracting for one- and two-family dwellings within the scope established by Oklahoma licensing law and the National Electrical Code.

Does an Oklahoma electrical contractor need insurance?

An active Electrical Contractor must maintain the insurance and contractor compliance requirements established by the Construction Industries Board, including the applicable commercial general liability insurance requirement.

Does Oklahoma require continuing education for Electrical Contractors?

Yes. Electrical Contractors currently need 12 hours of approved continuing education during each 36-month period, including six hours covering adopted code updates.

Is Ugly's Electrical References allowed during the exam?

Yes. Ugly's Electrical References is on the current approved reference list, and any edition may be used.

Does this online exam prep course guarantee a passing score?

No exam-preparation course can guarantee a passing result. This course provides organized study guidance, NEC navigation, electrical calculations review, contractor-focused preparation, safety review, and practice-oriented study to support your preparation.