Arizona Electrical Commercial Contractor (C-11) - Books & Courses Rental Package

The Arizona Electrical Commercial Contractor (C-11) - Books & Courses Rental Package is designed for contractors preparing for the Arizona C-11 Electrical Commercial trade exam with rental access to the listed reference books and structured online course preparation. This package gives commercial electrical professionals a practical way to study the exam topics, review the approved references, and prepare for the open-book testing format used for the Arizona electrical contractor examination.

The Arizona C-11 Electrical Commercial classification applies to installation, alteration, and repair of wiring, related electrical material, and electrical equipment used in the generating, transmitting, or utilization of electrical energy less than 600 volts. The scope also includes overhead electrical wiring on public right-of-ways for signs and street decorations, underground electrical distribution systems of less than 600 volts serving private properties, outside overhead and underground electrical construction, and wiring in or on buildings of less than 600 volts.

Preparing for the C-11 exam requires more than field experience. Candidates need to understand electrical theory, service equipment, feeders, branch circuits, grounding, bonding, conductors, cables, raceways, boxes, special occupancies, motors, low voltage systems, lighting, illuminated signs, fire alarm systems, safety, overcurrent protection, and photovoltaics. This rental package combines the listed books with 6 months of course access so candidates can study the electrical exam topics with structure, practice reference navigation, and build confidence before test day.

The rental price is $940, plus a $350 refundable deposit, for a total of $1,290. The refundable deposit applies to the rental books and is refundable according to the rental return terms.

Please allow up to 15 business days for book rental and course package orders

Exam Details

The Arizona C-11 Electrical Commercial trade exam contains 110 questions, has a 240-minute time limit, and requires a 70% minimum passing score. Arizona applicants applying for the C-11 or CR-11 Electrical Commercial classification have a choice of trade exams. They may take either the NASCLA Accredited Trade Examination for Electrical Contractors or the AZ ROC Electrical Commercial exam.

The Arizona C-11 Electrical Commercial exam content outline is divided into the following subject areas:

• General Electrical Knowledge: 5 items
• Service Feeders and Branch Circuits: 13 items
• Grounding and Bonding: 13 items
• Conductors and Cables: 12 items
• Raceways and Boxes: 10 items
• Special Occupancies and Equipment: 13 items
• Devices: 2 items
• Motors: 5 items
• Low Voltage: 5 items
• Lighting: 3 items
• Illuminated Signs: 1 item
• Fire Detection and Alarm Systems: 5 items
• Safety: 5 items
• Overcurrent Protection: 8 items
• Photovoltaics: 10 items

The C-11 exam is broad, technical, and code-heavy. Service feeders and branch circuits, grounding and bonding, conductors and cables, raceways and boxes, special occupancies and equipment, overcurrent protection, and photovoltaics all carry significant weight. Candidates should also prepare for smaller categories such as devices, lighting, illuminated signs, low voltage, motors, fire detection and alarm systems, and safety because every question matters on a licensing exam.

The listed reference materials were used to prepare the exam questions. The exam may also include questions based on trade knowledge or general industry practices. For code questions, the exam is based on the specific code edition listed for the examination, including the 2017 edition of NFPA 70 - National Electrical Code and the 2016 edition of NFPA 72 National Fire Alarm and Signaling Code.

Open Book Test

The Arizona C-11 Electrical Commercial trade exam is an open-book exam with specific restrictions. Only the approved reference materials are allowed in the examination center. Candidates are responsible for bringing their own approved references to the exam.

The allowed references may be highlighted, underlined, annotated, and indexed before the examination session. During the exam session, candidates may not write, highlight, underline, or index in the references. Additional papers, loose notes, and attached papers are not allowed with approved references. References may be tabbed or indexed with permanent tabs only. Temporary tabs, including removable tabs such as Post-it style tabs, are not allowed and must be removed before the exam begins.

A silent, nonprinting, non-programmable calculator may be used in the examination center. Downloaded references may be brought into the testing center when properly bound, such as spiral bound or placed in a binder after being hole-punched.

Because the C-11 exam is open book and timed, preparation should include serious book-navigation practice. The goal is not simply to have the books available. Candidates should know how the National Electrical Code is organized, how to locate fire alarm code information in NFPA 72, how to find construction safety rules in OSHA 29 CFR Part 1926, and how to connect trade knowledge with the questions on the exam.

Licensing Steps

The Arizona contractor licensing process is handled through the Arizona Registrar of Contractors. For the C-11 Electrical Commercial classification, the qualifying party is responsible for meeting the examination requirements that apply to the commercial electrical license classification. The trade exam is one part of the licensing process, and applicants may also need to meet additional Arizona contractor licensing requirements based on their application path and qualifying party status.

A practical preparation path includes reviewing the C-11 classification scope, studying the exam content outline, organizing the approved references, completing the online course, practicing open-book navigation, scheduling the required trade exam, passing the exam, and completing the applicable Arizona Registrar of Contractors application requirements.

Arizona applicants applying for the C-11 Electrical Commercial classification may choose between the NASCLA Accredited Trade Examination for Electrical Contractors and the AZ ROC Electrical Commercial exam. Candidates should select the exam path that matches their licensing plan and prepare using the correct reference list for that exam. This rental package is structured around the Arizona C-11 Electrical Commercial exam references listed here.

Candidates should also be prepared for administrative licensing requirements outside the trade exam. The application process may include business information, qualifying party information, examination records, bond-related requirements, and other materials required by the Arizona Registrar of Contractors. This package supports the exam-preparation stage by giving candidates access to the listed books and course structure needed for focused study.

State Requirements

The Arizona C-11 Electrical Commercial classification allows installation, alteration, and repair of wiring, related electrical material, and equipment used in generating, transmitting, or utilizing electrical energy less than 600 volts. It includes overhead electrical wiring on public right-of-ways for signs and street decorations, underground electrical distribution systems of less than 600 volts serving private properties, outside overhead and underground electrical construction, and wiring in or on buildings of less than 600 volts.

This classification is intended for commercial electrical work. Contractors preparing for the C-11 exam should understand electrical systems under 600 volts, commercial electrical installations, service equipment, feeders, branch circuits, grounding and bonding, conductors, raceways, boxes, special occupancies, fire alarm systems, photovoltaic systems, and construction safety requirements.

Arizona issues separate licenses for commercial and residential work, as well as dual classifications that cover both residential and commercial work for certain trades. The C-11 is the commercial electrical classification. Contractors who plan to perform residential electrical work or both residential and commercial electrical work should review the Arizona classification that matches the work they intend to perform.

Reference Books

This rental package includes the listed C-11 Electrical Commercial references for exam preparation. Some references are allowed in the examination center, while others are study references that support electrical knowledge and photovoltaic preparation but are not allowed in the exam room.

• Included Rental Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction safety reference supports preparation for OSHA safety questions, jobsite safety rules, employee protection, and construction hazard topics connected to electrical work.
• Included Rental Book: NFPA 70 - National Electrical Code, 2017 edition
  This electrical code reference supports preparation for service equipment, feeders, branch circuits, grounding and bonding, conductors, raceways, boxes, special occupancies, equipment, overcurrent protection, and code-based electrical questions.
• Included Rental Book: NFPA 72 National Fire Alarm and Signaling Code, 2016
  This fire alarm and signaling code reference supports preparation for fire detection and alarm system questions, signaling system requirements, and related code-based topics.
• Included Rental Book: Ugly's Electrical References
  This study reference supports preparation for common electrical formulas, calculations, tables, wiring information, conversions, and practical electrical reference review.
• Included Rental Book: Photovoltaic Systems, 3rd Edition, 2011
  This study reference supports preparation for photovoltaic system concepts, solar electric equipment, installation practices, and PV-related exam topics.

Please allow up to 15 business days for book rental and course package orders

Exam Room Approved Books

The following references are allowed in the Arizona C-11 Electrical Commercial examination center:

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Allowed in the exam room for OSHA construction safety and employee protection reference use.
• NFPA 70 - National Electrical Code, 2017 edition
  Allowed in the exam room for National Electrical Code reference use during code-based electrical questions.
• NFPA 72 National Fire Alarm and Signaling Code, 2016
  Allowed in the exam room for fire alarm and signaling code reference use.

The following listed study references are not allowed in the examination center: Ugly's Electrical References and Photovoltaic Systems, 3rd Edition, 2011. These books are still useful during preparation because they support electrical calculations, trade knowledge, and photovoltaic system review.

Test Information and Study Materials

The C-11 Electrical Commercial exam is a 110-question, 240-minute open-book exam. Candidates have time to use their references, but only when they know where to look. A strong study plan should combine electrical theory review, code navigation, calculation practice, safety review, photovoltaic study, and familiarity with NFPA 70, NFPA 72, and OSHA 29 CFR Part 1926.

Service Feeders and Branch Circuits should be studied carefully because this area is one of the larger exam categories. Candidates should review service equipment, feeder sizing concepts, branch circuit requirements, load calculations, conductor selection, and code rules that affect commercial electrical installations.

Grounding and Bonding is another major exam category. Candidates should understand grounding electrode systems, bonding requirements, equipment grounding conductors, grounding paths, grounding terminology, and how the National Electrical Code organizes grounding and bonding requirements. This is a topic where careful code navigation can make a major difference.

Conductors and Cables preparation should include conductor sizing, ampacity, insulation types, wiring methods, cable applications, temperature correction, adjustment factors, and installation conditions. Raceways and Boxes preparation should include raceway types, box fill, conduit fill, supports, fittings, installation requirements, and practical code application.

Special Occupancies and Equipment can involve a wide range of electrical code requirements. Candidates should study how the NEC organizes special occupancies, equipment rules, installation conditions, and exceptions. Overcurrent Protection should include fuses, breakers, conductor protection, equipment protection, short-circuit considerations, and coordination with conductor and circuit requirements.

Fire Detection and Alarm Systems should be reviewed using NFPA 72. Candidates should become familiar with fire alarm terminology, signaling concepts, system components, installation requirements, and the structure of the fire alarm code. Photovoltaics should also receive focused study time because it is a significant exam category. Candidates should review PV system components, wiring, disconnecting means, grounding, overcurrent protection, and solar electric system fundamentals.

Safety should be studied through the OSHA construction safety reference. Electrical contractors should be familiar with jobsite hazards, employee protection, ladders, scaffolds, fall protection, personal protective equipment, electrical safety concerns, excavation safety when applicable, and general construction safety rules. OSHA questions can often be answered more efficiently when the book is properly organized before the exam.

The online course helps bring structure to this preparation. Rather than reading every reference without direction, candidates can use the course to focus on the main content areas, reinforce electrical concepts, and practice the open-book approach. The rental books give candidates access to the listed materials during the study period, while the course helps organize the material into a more manageable routine.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps electrical contractors prepare with organized study guidance, trade-focused review, and practice-oriented exam preparation. The Arizona C-11 exam requires candidates to understand electrical code, safety rules, fire alarm systems, photovoltaic concepts, and practical electrical trade knowledge. This package brings the listed books and course access together so candidates can study with structure instead of trying to manage the exam materials alone.

The course supports preparation by helping students work through the major exam categories, including service feeders and branch circuits, grounding and bonding, conductors and cables, raceways and boxes, special occupancies and equipment, motors, low voltage, lighting, fire detection and alarm systems, safety, overcurrent protection, and photovoltaics. For the open-book portion of preparation, the study process emphasizes reference familiarity, book organization, and faster navigation.

1 Exam Prep’s approach is practical and realistic. The goal is to help you build confidence, reduce study confusion, and prepare with a clear plan. The rental format gives you access to the listed books for the preparation period without requiring you to purchase every reference outright. With 6 months of course access, you have time to review the material, revisit difficult subjects, practice calculations, strengthen code navigation, and build a more organized exam routine before test day.

This package is especially useful for electricians and electrical contractors who already understand field work but need a more focused plan for licensing exam preparation. Field knowledge is valuable, but the C-11 exam also requires candidates to answer code-based questions, use references efficiently, and manage time. 1 Exam Prep helps bridge that gap with study structure, electrical trade review, reference navigation, and confidence-building preparation.

FAQ Section

What is included in the Arizona C-11 Books & Courses Rental Package?

This package includes rental access to the listed C-11 reference books and 6 months of course access. The rental books are Code of Federal Regulations - 29 CFR Part 1926 (OSHA), NFPA 70 - National Electrical Code, 2017 edition, NFPA 72 National Fire Alarm and Signaling Code, 2016, Ugly's Electrical References, and Photovoltaic Systems, 3rd Edition, 2011.

How much does the C-11 rental package cost?

The rental package price is $940 plus a $350 refundable deposit, for a total of $1,290. The deposit is refundable according to the rental return terms for the books.

Is the Arizona C-11 Electrical Commercial exam open book?

Yes. The Arizona C-11 Electrical Commercial trade exam is open book, but only approved references are allowed in the examination center. Candidates must bring their own approved references and follow the rules for permanent tabs, annotations, highlighting, indexing, and notes.

Which books are allowed in the C-11 exam room?

The approved exam-room books are Code of Federal Regulations - 29 CFR Part 1926 (OSHA), NFPA 70 - National Electrical Code, 2017 edition, and NFPA 72 National Fire Alarm and Signaling Code, 2016.

Are all rental books allowed in the exam room?

No. Ugly's Electrical References and Photovoltaic Systems, 3rd Edition, 2011 are study references and are not allowed in the examination center. They are included to support electrical calculations, practical electrical review, and photovoltaic system preparation.

How many questions are on the Arizona C-11 exam?

The Arizona C-11 Electrical Commercial exam has 110 questions.

How much time is allowed for the C-11 exam?

The time allowed for the Arizona C-11 Electrical Commercial exam is 240 minutes.

What score is required to pass the C-11 exam?

The minimum passing score for the Arizona C-11 Electrical Commercial exam is 70%.

What topics are covered on the C-11 exam?

The exam covers general electrical knowledge, service feeders and branch circuits, grounding and bonding, conductors and cables, raceways and boxes, special occupancies and equipment, devices, motors, low voltage, lighting, illuminated signs, fire detection and alarm systems, safety, overcurrent protection, and photovoltaics.

Can I write in my books during the exam?

No. References may be highlighted, underlined, annotated, and indexed before the examination session, but candidates may not write, highlight, underline, or index in the books during the exam session.

What does the Arizona C-11 Electrical Commercial classification cover?

The C-11 classification covers commercial electrical work involving wiring, electrical material, and equipment used in generating, transmitting, or using electrical energy less than 600 volts, including related overhead, underground, outside, and building wiring work within the classification scope.

Who is this rental package best for?

This package is best for Arizona commercial electrical contractors preparing for the C-11 trade exam who want rental access to the listed books, 6 months of course access, and organized preparation for electrical code, fire alarm systems, OSHA safety, photovoltaic systems, calculations, and open-book reference navigation.