Oklahoma Unlimited Electrical Contractor Highlighted & Tabbed Book Package

Prepare for the Oklahoma Unlimited Electrical Contractor examination with a focused set of approved technical references covering the 2023 National Electrical Code, construction safety, and practical electrical calculations and reference information. This highlighted and tabbed book package is designed to help candidates organize their study materials and become more comfortable navigating the references used for the Oklahoma Unlimited Electrical Contractor technical exam.

The Unlimited Electrical Contractor classification is Oklahoma’s broad electrical contractor category. Candidates preparing for the examination should be ready to work with electrical theory, installation requirements, services, feeders, branch circuits, grounding and bonding, conductors, raceways, overcurrent protection, special occupancies, low-voltage systems, motors, transformers, lighting, and construction safety.

The technical examination is based heavily on the 2023 National Electrical Code as revised and adopted in Oklahoma. The package also includes Code of Federal Regulations - 29 CFR Part 1926 (OSHA) for construction safety topics and Ugly's Electrical References for electrical formulas, calculations, tables, and practical reference information.

All books in this package are highlighted and tabbed to support organized study and reference navigation. Because the Oklahoma Unlimited Electrical Contractor examination is open book, candidates benefit from learning where important sections, tables, formulas, and code provisions are located before test day.

Repeated practice with the references can help candidates develop a consistent approach to exam questions. Instead of searching through an unfamiliar book from the beginning, candidates can identify the subject of the question, choose the appropriate reference, and move more efficiently toward the information needed.

Please allow up to 15 business days for tabbed and highlighted book package orders.

Exam Details

The Oklahoma Unlimited Electrical Contractor examination contains 100 scored questions. Candidates receive 240 minutes to complete the examination, and a score of 70% correct is required to pass.

The examination tests a candidate’s knowledge of the design, planning, layout, installation, repair, and alteration of electrical conductors, fixtures, appliances, apparatus, raceways, conduit, and related equipment using electrical energy for light, heat, power, data, and communications.

General Knowledge includes subjects such as permits and inspections, preservation of structural integrity, needs analysis, and estimating. Candidates should understand the practical responsibilities involved in planning electrical installations as well as complying with applicable inspection and installation requirements.

General Electrical Knowledge includes voltage, current, resistance, series and parallel circuits, electrical power, AC theory, three-phase systems, troubleshooting, NEC definitions, temporary wiring, cranes, hoists, elevators, and escalators. Strong electrical fundamentals are important because many code and calculation questions depend on an understanding of electrical theory.

Electrical Installation Requirements include approved methods for installing electrical equipment, including equipment operating at higher voltages. Candidates should be familiar with the general installation principles established by the NEC and how those requirements apply to different electrical systems.

Services, Feeders, and Branch Circuits are important areas of study. Topics can include services, voltage drop, feeders, outside branch circuits and feeders, branch circuits, space-heating equipment, snow-melting systems, pipe-heating circuits, air-conditioning equipment, and refrigeration equipment.

Overcurrent Protection requires familiarity with NEC requirements for protecting conductors and equipment against excessive current. Candidates should understand the relationship between conductors, equipment, circuit ratings, and overcurrent protective devices.

Grounding and Bonding includes general grounding requirements, grounding electrode conductors, equipment grounding conductors, and related sizing requirements. This is a major area of electrical-code study and should receive regular attention during preparation.

Conductors and Cables include conductor selection, underground installations, vertical installations, armored cable, metal-clad cable, nonmetallic-sheathed cable, service-entrance cable, underground feeder cable, mineral-insulated cable, and other wiring methods.

Raceways and Boxes include rigid metal conduit, intermediate metal conduit, electrical metallic tubing, rigid nonmetallic conduit, flexible conduit systems, conduit fill, box fill, pull boxes, fittings, wireways, auxiliary gutters, and other wiring enclosures.

The examination also addresses Special Occupancies and Equipment, Low Voltage and Communications, Lighting and Signs, Safety, and Motors and Transformers. Candidates should build familiarity with both the technical principles and the NEC sections that govern these installations.

Open Book Test

The Oklahoma Unlimited Electrical Contractor examination is an open book test. Approved references may be used during the examination according to the testing provider’s examination-center rules.

The technical reference list includes the NFPA 70 National Electrical Code, 2023 Edition, as revised and adopted by the Oklahoma Uniform Building Code Commission; Code of Federal Regulations - 29 CFR Part 1926 with applicable amendments; and Ugly's Electrical References.

The examination is based on the specifically listed NEC edition for code questions. Candidates should prepare from the 2023 NEC rather than relying on a different code cycle when studying code requirements.

Approved reference materials may be highlighted, underlined, and indexed before the examination. Permanent tabs are allowed for indexing, while temporary removable tabs are not permitted. Candidates should also avoid adding written notes or additional loose papers to examination references.

The highlighted and tabbed books in this package are designed to support efficient navigation during preparation. Candidates can become familiar with important NEC articles, tables, calculation sections, OSHA safety requirements, and electrical formulas before entering the testing center.

An open-book format does not eliminate the need for electrical knowledge. With 100 scored questions and 240 minutes available, candidates should develop the ability to answer familiar questions efficiently while using references when detailed confirmation is needed.

A useful strategy is to identify the subject first. A grounding question should direct attention toward applicable NEC grounding and bonding requirements. A construction safety question may require 29 CFR Part 1926. A calculation or general electrical-reference question may be easier to approach using Ugly's Electrical References.

Practicing this approach repeatedly can help candidates become more comfortable moving between the three resources without losing unnecessary time.

Licensing Steps

The Oklahoma Construction Industries Board administers electrical contractor licensing. Candidates pursuing an Unlimited Electrical Contractor license must satisfy the applicable experience requirements, submit the required application materials, receive approval for examination, complete the required testing process, and meet the requirements for an active contractor license.

The normal licensing path begins with electrical field experience. Applicants must document qualifying electrical construction work and meet the contractor-level experience requirements established for the Unlimited Electrical Contractor classification.

An Oklahoma Unlimited Electrical Contractor applicant must document 12,000 verifiable hours of on-the-job experience in electrical construction work. The requirements include 4,000 hours of experience as a licensed Unlimited Electrical Journeyman.

Within the required experience, 6,000 hours must be commercial or industrial electrical work obtained while employed by a licensed Electrical Contractor. Oklahoma also allows a maximum of 2,000 hours of the experience requirement to be satisfied through qualifying formal electrical education.

Electrical Contractors must be an owner, partner, or officer in the electrical firm. This contractor-level relationship is part of the state’s requirements for operating under the electrical contractor license.

After the applicant’s qualifications are reviewed and examination eligibility is approved, the candidate proceeds with the authorized examination process. The Unlimited Electrical Contractor technical examination measures electrical knowledge across a broad range of systems and installations.

After completing the examination and licensing requirements, the contractor must satisfy Oklahoma’s active-license requirements before performing electrical contracting work under an active contractor license.

State Requirements

Unlimited Electrical Contractors are unlimited in the type of electrical contracting they may perform within the scope of Oklahoma electrical licensing. The classification carries significant responsibility because license holders may oversee electrical work involving residential, commercial, industrial, power, lighting, data, communications, and other electrical systems.

The experience requirement is designed to ensure that applicants have substantial electrical construction experience before becoming contractors. Candidates should be prepared to document the required 12,000 hours, including qualifying journeyman and commercial or industrial work.

After successfully completing the required examinations, the electrical contractor license remains inactive until the Construction Industries Board receives the required bond and insurance documentation.

An active Oklahoma Electrical Contractor must maintain a $5,000 corporate surety bond payable to the Oklahoma Construction Industries Board. The bond must meet the state requirements for active contractor licensing.

An active contractor must also maintain at least $50,000 in commercial general liability insurance. Contractors are responsible for maintaining current coverage and providing the required insurance information to the Construction Industries Board.

Electrical Contractors must also comply with applicable workers’ compensation requirements and maintain the documentation required for their business and workforce.

Continuing education is part of maintaining an Oklahoma electrical license. Electrical Contractors and Electrical Journeymen must complete 12 hours of approved continuing education every three years or 36 months preceding license renewal.

The continuing education requirement includes six hours covering applicable code updates. The remaining hours may include electrical theory, calculations, wiring methods, grounding and bonding, motors, transformers, control systems, alternative energy systems, electrical safety, electrical licensing law, industry regulations, and other approved trade subjects.

Contractors must also maintain proper licensing information and follow applicable requirements involving the display of license numbers, advertising, contracts, bids, apprentice supervision, and other responsibilities associated with operating an electrical contracting business.

Reference Books

• National Electrical Code, NEC, 2023
  The 2023 National Electrical Code is the primary code reference for the Oklahoma Unlimited Electrical Contractor technical examination. Candidates can use it to study services, feeders, branch circuits, grounding and bonding, overcurrent protection, conductors, raceways, boxes, special occupancies, equipment, lighting, motors, transformers, and other electrical installations.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This federal construction safety reference supports preparation for workplace safety topics involving personal protective equipment, excavation safety, emergency planning, ladders, scaffolds, fall protection, jobsite sanitation, tools, material handling, workplace illumination, and other construction hazards.
• Ugly's Electrical References
  This compact electrical reference provides formulas, calculations, tables, electrical terminology, conductor information, motor information, conversions, and other practical electrical data. It can support review of calculations and general electrical knowledge while helping candidates quickly locate commonly used information.

Test Information and Study Materials

A productive study plan should use all three references together. The NEC should be the central resource for code preparation, while OSHA supports safety study and Ugly's Electrical References can assist with formulas, tables, and general electrical calculations.

Start by becoming comfortable with the structure of the 2023 NEC. Learn how the chapters, articles, tables, and informational sections are organized. Rather than trying to memorize the entire code, focus on understanding where major electrical subjects are located.

Spend dedicated study time on services, feeders, branch circuits, grounding and bonding, conductor ampacity, overcurrent protection, conduit and raceway requirements, box fill, motors, transformers, and special occupancies. These subjects often require both technical understanding and efficient NEC navigation.

Electrical calculations should be practiced regularly. Review voltage, current, resistance, power, series and parallel circuits, three-phase calculations, conductor sizing, voltage drop, raceway fill, box fill, motors, and transformers. Use Ugly's Electrical References to become comfortable with commonly used formulas and tables.

Safety study should include direct use of 29 CFR Part 1926. Practice locating information involving personal protective equipment, ladders, scaffolds, fall protection, excavation, workplace illumination, tools, emergency procedures, and material handling.

Reference-navigation exercises can be incorporated into every study session. Select a question, determine the subject, identify the most appropriate book, locate the relevant section, and apply the information to the problem.

When an answer is incorrect, return to the reference and identify the section or formula supporting the correct answer. This reinforces the technical concept while improving familiarity with the book.

Timed practice is also useful. The examination allows 240 minutes for 100 scored questions, so candidates should develop a steady pace and avoid spending too much time on a single lookup. Familiarity with the highlighted and tabbed references can support a more organized search process.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Oklahoma Unlimited Electrical Contractor candidates through organized study guidance, trade-focused review, practice-oriented preparation, and reference-navigation strategies.

The Unlimited Electrical Contractor examination covers a broad range of electrical systems, making organized preparation especially important. Candidates may need to move from electrical theory and calculations to services, grounding, conductors, raceways, motors, transformers, special occupancies, and OSHA safety.

Highlighted and tabbed references give candidates a structured starting point. The books can be used throughout preparation so important NEC sections, OSHA topics, and electrical reference information become more familiar over time.

Trade-focused review helps reinforce the electrical principles behind the code requirements. Candidates can build stronger understanding of calculations, installation methods, grounding and bonding, conductor sizing, protection requirements, raceways, equipment, and safety.

Reference-navigation practice helps candidates develop a repeatable method for working with open-book questions. Identify the topic, select the reference, locate the applicable section, and apply the information carefully.

The goal is to strengthen electrical knowledge, improve familiarity with the approved references, develop efficient study habits, and build confidence through structured preparation for the Oklahoma Unlimited Electrical Contractor examination.

FAQ Section

What is included in the Oklahoma Unlimited Electrical Contractor Highlighted & Tabbed Book Package?

The package includes the National Electrical Code, NEC, 2023, Code of Federal Regulations - 29 CFR Part 1926 (OSHA), and Ugly's Electrical References. The books are highlighted and tabbed for organized study and reference navigation.

Are the books highlighted and tabbed?

Yes. The books in this package are highlighted and tabbed to support efficient studying and easier reference navigation.

Is the Oklahoma Unlimited Electrical Contractor exam open book?

Yes. The technical examination is open book, and approved references may be used according to the testing provider’s examination rules.

How many questions are on the Oklahoma Unlimited Electrical Contractor exam?

The technical examination contains 100 scored questions.

How much time is allowed for the examination?

Candidates receive 240 minutes to complete the Oklahoma Unlimited Electrical Contractor technical examination.

What score is required to pass?

A score of 70% correct is required to pass.

Which NEC edition is used for the examination?

The examination uses the National Electrical Code, 2023 Edition, as revised and adopted by the Oklahoma Uniform Building Code Commission.

Does the package include OSHA material?

Yes. Code of Federal Regulations - 29 CFR Part 1926 is included for construction safety preparation.

Why is Ugly's Electrical References included?

Ugly's Electrical References provides electrical formulas, tables, calculations, conversions, and practical reference information that can support general electrical knowledge and calculation practice.

How long should I allow for my highlighted and tabbed book package order?

Please allow up to 15 business days for tabbed and highlighted book package orders.