Arizona Electrical Commercial Contractor (C-11) Highlighted & Tabbed Book Package

Arizona Electrical Commercial Contractor (C-11) Highlighted & Tabbed Book Package

The Arizona Electrical Commercial Contractor (C-11) Highlighted & Tabbed Book Package is designed for contractors preparing for the Arizona C-11 Electrical Commercial trade examination. This package brings together the OSHA safety, National Electrical Code, fire alarm code, electrical reference, and photovoltaic study materials used to support organized preparation for Arizona’s commercial electrical contractor licensing process.

The C-11 classification is focused on commercial electrical work under 600 volts. Candidates preparing for this exam should be ready to study general electrical knowledge, service feeders, branch circuits, grounding, bonding, conductors, cables, raceways, boxes, special occupancies, special equipment, devices, motors, low voltage systems, lighting, illuminated signs, fire detection, alarm systems, safety, overcurrent protection, and photovoltaics.

This highlighted and tabbed book package helps make exam preparation more efficient. Electrical references can be dense, especially when candidates are working through NEC articles, fire alarm requirements, OSHA safety rules, and photovoltaic concepts. Highlighted sections help guide review toward important material, while permanent tabs help candidates move through major articles, tables, definitions, safety sections, and reference areas more quickly. For an open book contractor exam, knowing how to locate information under time pressure is a major part of preparation.

This package is a strong fit for commercial electrical contractors, electricians moving into contracting, qualifying parties, business owners, project supervisors, electrical foremen, solar professionals, and tradespeople preparing for the Arizona C-11 commercial electrical contractor license. It is especially useful for candidates who have field experience but need organized references for exam-focused study and open book test navigation.

What You Get

• Highlighted reference books: Key areas are highlighted to help candidates focus on important exam-related material during preparation.
• Permanent tabs: Tabs are placed to support faster movement through major NEC articles, OSHA sections, NFPA 72 topics, tables, definitions, and reference areas.
• Commercial electrical study support: The package supports review across wiring methods, circuits, grounding, bonding, conductors, raceways, overcurrent protection, motors, low voltage, lighting, fire alarm systems, safety, and photovoltaics.
• Organized exam preparation structure: The books are prepared to help reduce search time, improve reference familiarity, and support more productive study sessions.

Exam Details

The Arizona C-11 Electrical Commercial examination is administered through PSI for the Arizona Registrar of Contractors. The exam contains 110 questions. The minimum passing score is 70%, and the time allowed is 240 minutes.

The exam content areas include:

• 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 examination may include questions based on listed reference materials, trade knowledge, and general industry practices. Code questions are based on the specific code editions listed for the examination. Candidates should prepare with the 2017 National Electrical Code and the 2016 NFPA 72 National Fire Alarm and Signaling Code where applicable to the exam outline.

Arizona applicants applying for the C-11 or CR-11 Electrical Commercial classification have a choice of trade exams. They may elect to take either the NASCLA Accredited Trade Examination for Electrical Contractors or the AZ ROC Electrical Commercial exam. This product page is written for the Arizona C-11 Electrical Commercial trade exam reference set listed in this package.

Open Book Test

The Arizona C-11 Electrical Commercial trade examination is an open book test using approved reference materials. Candidates are responsible for bringing their own approved references to the examination center.

The approved exam-room references listed for the C-11 examination include 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. These approved references may be highlighted, underlined, annotated, and indexed before the examination session.

Candidates may not write, highlight, underline, or index references during the exam. Additional papers, whether loose or attached, are not permitted with approved references. References may be tabbed or indexed with permanent tabs only. Permanent tabs are tabs that would tear the page if removed. Temporary tabs, removable sticky tabs, and loose papers are not permitted and must be removed before the examination begins.

Ugly's Electrical References and Photovoltaic Systems, 3rd Edition, 2011 are study references connected to the examination content, but they are not listed as exam-room-approved references for the Arizona C-11 examination. These materials are useful for building electrical calculation skills, reviewing common field references, and strengthening photovoltaic knowledge before test day.

Candidates may use a silent, nonprinting, non-programmable calculator in the examination center. Downloaded references may be brought into the testing center only when bound, such as spiral-bound or placed in a binder after being hole-punched. The highlighted and tabbed structure of this package is designed to support study, review, and efficient navigation of the approved references.

Licensing Steps

Arizona contractor licensing is handled by the Arizona Registrar of Contractors. Applicants should begin by identifying the correct license classification and reviewing the examination requirements tied to that classification. The person completing the required examination process must serve as the qualifying party for the license.

The C-11 classification is the commercial electrical contractor classification. Candidates pursuing this license should prepare for electrical work involving wiring, electrical material, equipment used in generating, transmitting, or using electrical energy under 600 volts, overhead electrical wiring for signs and street decorations, underground electrical distribution systems under 600 volts serving private properties, and wiring in or on buildings under 600 volts.

For many new Arizona contractor license applicants, the licensing process also includes the Arizona Statutes and Rules Exam, also known as the SRE. The SRE is separate from the trade examination. The C-11 trade exam focuses on commercial electrical knowledge, NEC navigation, fire alarm systems, OSHA safety, and photovoltaic topics, while the statutes and rules requirement covers Arizona contractor law, rules, and regulatory responsibilities.

After the required examinations are completed, the applicant submits the completed contractor license application and supporting documentation to the Arizona Registrar of Contractors. Examination requirements must be completed before the application can be accepted for processing. Score reports must be submitted within the required period after passing the examination.

A practical licensing path includes confirming the C-11 classification, choosing the correct trade exam path, studying the approved trade references, learning the open book testing rules, completing the Arizona statutes and rules requirement when applicable, scheduling and taking the PSI trade exam, and submitting the completed license application package to the Arizona Registrar of Contractors.

State Requirements

The Arizona C-11 Electrical Commercial classification allows installation, alteration, and repair of wiring, related electrical material, and equipment used in the generating, transmitting, or utilization of electrical energy under 600 volts. The scope includes all overhead electrical wiring on public rights-of-way for signs and street decorations and underground electrical distribution systems under 600 volts serving private properties.

The classification also includes installation, alteration, and repair outside public rights-of-way of outside, overhead, and underground electrical construction, along with wiring in or on buildings under 600 volts. Candidates should keep this commercial electrical scope in mind while studying and avoid confusing the C-11 classification with unrelated high-voltage, utility, or non-electrical trade scopes.

The trade exam content reflects the practical and technical knowledge needed for commercial electrical contracting. Candidates should be prepared for questions involving service equipment, feeders, branch circuits, conductor sizing, raceway fill, box sizing, grounding electrode systems, bonding jumpers, special occupancies, equipment requirements, motors, lighting systems, fire alarm systems, overcurrent devices, photovoltaic systems, and construction safety.

Arizona licensing involves more than passing the trade examination. Applicants may also need to satisfy business, entity, bonding, experience, background, application, and qualifying party requirements depending on the applicant’s structure and license type. The trade exam is one major step in the process, but the license is issued only after the Arizona Registrar of Contractors reviews and processes the completed application.

Reference Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction safety reference supports safety content and covers federal construction standards used to address jobsite hazards, worker protection, safe work practices, electrical safety concerns, and construction safety requirements.
• NFPA 70 - National Electrical Code, 2017 edition
  This electrical code reference supports preparation for wiring methods, branch circuits, feeders, services, grounding, bonding, conductors, raceways, boxes, overcurrent protection, equipment installation, special occupancies, special equipment, motors, lighting, signs, and photovoltaic systems.
• NFPA 72 National Fire Alarm and Signaling Code, 2016
  This fire alarm and signaling reference supports preparation for fire detection, alarm systems, initiating devices, notification appliances, circuits, power supplies, installation requirements, testing concepts, and signaling system requirements.
• Ugly's Electrical References
  This electrical field reference supports study of common electrical calculations, formulas, tables, conversions, conductor information, wiring references, electrical symbols, and practical field information used by electrical professionals.
• Photovoltaic Systems, 3rd Edition, 2011
  This photovoltaic reference supports preparation for solar electric system principles, photovoltaic modules, arrays, wiring, inverters, grounding, overcurrent protection, system sizing, installation concepts, and safety considerations.

Test Information and Study Materials

The Arizona C-11 exam rewards candidates who combine electrical field experience with organized reference use. Since the exam contains 110 questions and allows 240 minutes, candidates should practice using their approved references before exam day. The goal is not to read full code chapters during the test. The goal is to know which book to use, which article or section to open, and how to confirm an answer efficiently.

The National Electrical Code is the primary reference for many subject areas. Candidates should practice locating definitions, branch circuit requirements, feeder rules, service requirements, conductor ampacity tables, adjustment and correction factors, grounding and bonding rules, raceway requirements, box fill rules, special occupancy articles, special equipment articles, motor requirements, overcurrent protection rules, lighting requirements, signs, and photovoltaic system requirements.

Grounding and bonding, service feeders, branch circuits, special occupancies, equipment, conductors, and cables are among the largest content areas on the exam. Candidates should give these topics significant study time. NEC navigation practice should include looking up tables, exceptions, definitions, notes, and cross-referenced articles because electrical exam questions often require more than one code section to reach the correct answer.

Raceways and boxes also deserve careful review. Candidates should understand raceway types, installation conditions, support requirements, fill calculations, box sizing, conduit bodies, fittings, conductor protection, bending rules, and location requirements. Practicing calculations with the NEC and Ugly's Electrical References can help candidates build speed and confidence.

Overcurrent protection questions may involve breaker and fuse sizing, conductor protection, equipment protection, motor circuits, continuous loads, ratings, interrupting ratings, and coordination with the applicable NEC articles. Candidates should review where these rules appear in the NEC and practice applying them to exam-style situations.

Fire detection and alarm systems should be studied through NFPA 72. Candidates should review basic fire alarm system components, initiating devices, notification appliances, circuits, power supply requirements, installation practices, testing concepts, and signaling system terminology. Familiarity with NFPA 72 organization can reduce search time during the exam.

Photovoltaics represent a meaningful portion of the exam. Candidates should review photovoltaic modules, arrays, conductors, grounding, overcurrent protection, disconnects, inverters, system sizing, wiring methods, and safety considerations. Photovoltaic Systems, 3rd Edition, 2011 supports this study area, while the NEC provides code-based photovoltaic requirements.

The OSHA reference should be reviewed for construction safety topics that apply to electrical work. Candidates should study personal protective equipment, ladders, scaffolds, fall protection, electrical hazards, lockout and tagout concepts where applicable, tools, material handling, trenching concerns, hazard communication, and general construction safety practices. Safety questions may require candidates to recognize hazards or locate requirements in OSHA Part 1926.

A practical study method is to work through the content outline one subject at a time. Start with service feeders and branch circuits, grounding and bonding, conductors and cables, special occupancies and equipment, raceways and boxes, photovoltaics, and overcurrent protection because these areas make up a large share of the exam. Then move into general electrical knowledge, motors, low voltage, lighting, illuminated signs, fire detection and alarm systems, and safety.

During each study session, candidates should use the highlighted and tabbed books under timed conditions. This builds familiarity with the books and helps develop a repeatable process for finding information during the open book exam. Electrical exams are often won through preparation, accuracy, and efficient reference navigation.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps contractor candidates prepare with organized study materials, trade-focused review, and reference navigation support. This highlighted and tabbed book package is designed to help Arizona C-11 candidates study the approved code and safety references along with supporting electrical and photovoltaic study materials with a clearer structure.

For many candidates, the challenge is not only knowing electrical work. The challenge is knowing where to find information quickly inside the NEC, NFPA 72, OSHA, and supporting electrical references. 1 Exam Prep helps simplify that process by preparing books with highlights and tabs that support focused review and faster navigation.

The highlighted sections help direct attention to important material, while the tabs make it easier to move between major subjects during study sessions. Candidates can use the package to review service feeders, branch circuits, grounding, bonding, conductors, cables, raceways, boxes, special occupancies, motors, low voltage, lighting, fire alarms, safety, overcurrent protection, and photovoltaics in a more organized way.

1 Exam Prep’s approach is practical and exam-focused. The goal is to help candidates study with less confusion, use their references more effectively, and build confidence through consistent preparation. No book package can guarantee a passing score or license approval, but organized references can make the preparation process clearer, more efficient, and easier to manage.

FAQ Section

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

Yes. The Arizona C-11 Electrical Commercial trade exam is open book using approved reference materials. Candidates must bring their own approved references and follow the testing center rules for highlighting, annotations, indexing, and permanent tabs.

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

The exam contains 110 questions. The minimum passing score is 70%, and the time allowed is 240 minutes.

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.

Which books are allowed in the examination center?

The approved exam-room references listed for the C-11 examination include 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 books in this package allowed in the exam room?

No. Ugly's Electrical References and Photovoltaic Systems, 3rd Edition, 2011 are study references connected to exam preparation, but they are not listed as exam-room-approved references for the Arizona C-11 examination.

Can I write in my books during the exam?

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

Are removable tabs allowed?

No. Tabs must be permanent. Permanent tabs are tabs that would tear the page if removed. Temporary sticky tabs and removable tabs are not permitted.

What work does the Arizona C-11 classification cover?

The C-11 classification covers installation, alteration, and repair of wiring, related electrical material, and equipment used in generating, transmitting, or using electrical energy under 600 volts, including specified overhead and underground electrical construction within the classification scope.

Who administers the Arizona C-11 trade exam?

The Arizona Registrar of Contractors has contracted with PSI to conduct the trade examination program for Arizona contractor licensing.

Is this package helpful for experienced commercial electricians?

Yes. Field experience is valuable, but the exam also requires candidates to use the NEC, NFPA 72, OSHA, and supporting study references efficiently. Highlighted and tabbed books help experienced electricians connect practical knowledge with the references used for the exam.