Current official state exam: PSI lists 110 questions, 240 minutes and a 70% passing score for both the Arizona C-11/CR-11 Electrical Commercial exam and the R-11 Electrical Residential exam. The state-specific PSI outlines currently list the 2017 NEC, not NEC 2023, for code questions. Verify the current Arizona ROC licensing path and 2026 PSI Candidate Information Bulletin before testing.
What Is the Arizona C-11 / CR-11 Electrical Contractor Exam?
The Arizona C-11 Electrical Commercial contractor exam is the state-specific trade examination used for qualifying C-11 commercial electrical and CR-11 dual electrical contractor applications when the applicant chooses the AZ ROC electrical contractor trade exam instead of an accepted NASCLA electrical examination.
Short answer: the current PSI C-11/CR-11 Electrical Commercial exam contains 110 questions, allows 240 minutes and requires a 70 percent passing score. Arizona also uses the Statutes and Rules Training Course and Exam, or SRE, as part of the contractor licensing process unless a current waiver applies.
The Arizona C-11 scope covers qualifying installation, alteration and repair of electrical wiring, material and equipment associated with electrical energy below 600 volts. CR-11 combines the scopes of C-11 commercial electrical and R-11 residential electrical.
This page combines current PSI exam data, Arizona ROC licensing information, NASCLA options, approved exam references, competitor research and structured electrical contractor exam prep strategy without pricing.
Arizona C-11 / CR-11 Electrical Exam Topics and Contractor Responsibilities
Match the highest-weight electrical contractor content areas to the code knowledge, calculations and field concepts you should be ready to locate and apply.
| Exam Area | What It Covers | Exam Prep Focus |
|---|---|---|
| Service Feeders and Branch Circuits | Services, feeders, branch circuits, load calculations and related code application | 13 questions |
| Grounding and Bonding | Grounding electrode systems, bonding and grounding conductor rules | 13 questions |
| Special Occupancies and Equipment | Special locations, equipment and code requirements | 13 questions |
| Conductors and Cables | Ampacity, conductor sizing, cable types and installation requirements | 12 questions |
| Raceways, Boxes and Photovoltaics | Raceway systems, box requirements, fill calculations and photovoltaic systems | 10 questions each |
| Overcurrent, Motors, Low Voltage, Fire Alarm and Safety | Protection, motors, low-voltage systems, NFPA 72, OSHA and supporting electrical knowledge | 5-8 questions per category |
The PSI content outline is an exam study guide, not a contractor license by itself. Verify the final C-11, CR-11 or R-11 scope directly with the Arizona Registrar of Contractors.
Research Authority and Verification Snapshot
The strongest Arizona electrical contractor exam claims were checked against PSI, the Arizona ROC, NASCLA, 1 Exam Prep and multiple current contractor exam-prep competitors.
| Verified Point | Authority Count | Controlling Source |
|---|---|---|
| 110 questions / 240 minutes / 70% | 7+ reviewed sources | PSI C-11/CR-11 and R-11 content outlines |
| 2017 NEC for the current state-specific PSI code questions | 6+ reviewed sources | PSI electrical contractor content outlines |
| 2016 NFPA 72 allowed in the exam room | 5+ reviewed sources | PSI electrical contractor content outlines |
| Arizona SRE plus applicable trade requirement | 5+ reviewed sources | Arizona ROC and 2026 PSI bulletin |
| NASCLA option for C-11, CR-11 and R-11 | 6+ reviewed sources | Arizona ROC, PSI and NASCLA |
| 30-day retest wait; three attempts before 90-day wait | 2 official confirmations | 2026 PSI Candidate Information Bulletin |
Primary authority controls. When a third-party contractor exam prep page conflicts with PSI or the Arizona ROC, use the current official source for the exam or licensing requirement.
Arizona C-11 / CR-11 Electrical Commercial Exam Breakdown
The state-specific trade examination is administered through PSI for the Arizona Registrar of Contractors and is one available technical exam path for C-11 and CR-11 applicants.
Electrical Commercial Exam110 questions | 240 minutes | 70% to pass
Applicable ClassificationsC-11 commercial electrical | CR-11 dual electrical
FormatTimed, computer-based and open book for approved references
Testing ProviderPSI Services
Licensing AuthorityArizona Registrar of Contractors
Primary Code EditionNFPA 70 National Electrical Code, 2017 Edition
Fire Alarm ReferenceNFPA 72 National Fire Alarm Code, 2016 Edition
Safety Reference29 CFR Part 1926 OSHA with current applicable amendments
Alternate Exam PathNASCLA Accredited Trade Examination for Electrical Contractors
Use the current official state-exam numbers. PSI lists 110 questions, 240 minutes and a 70 percent minimum passing score for the C-11/CR-11 Electrical Commercial exam.
It is open book. Bring only references allowed under the current PSI content outline and prepare them before the examination.
The code edition matters. The current PSI state outline lists the 2017 National Electrical Code for code questions.
Study books and exam-room books are not the same thing. Ugly's and photovoltaic manuals can support prep but are listed by PSI as not allowed in the examination center for the state-specific exam.
NEC Navigation, Electrical Calculations and Open-Book Contractor Exam Prep
The Arizona electrical contractor exam rewards candidates who can identify the electrical subject, select the correct reference and quickly locate the NEC article, NFPA 72 section, OSHA standard or calculation method.
Simplified study illustration. Use the official authorized references for actual exam answers.
Train every practice question as a lookup sequence: identify the electrical topic, select the likely reference, use the index or permanent tab, locate the controlling article or table, complete the calculation and return to the test.
- Service Feeders and Branch Circuits: 13 questions.
- Grounding and Bonding: 13 questions.
- Special Occupancies and Equipment: 13 questions.
- Conductors and Cables: 12 questions.
- Raceways and Boxes / Photovoltaics: 10 questions each.
| Skill | What to Practice | Common Mistake |
|---|---|---|
| NEC article selection | Services, feeders, branch circuits, grounding, conductors, raceways, motors and protection | Searching the entire code without identifying the subject first |
| Index navigation | Primary keywords, secondary terms and cross-references | Reading full articles instead of targeted code lookup |
| Electrical calculations | Loads, conductors, services, feeders, motors, voltage and related math | Using a formula before confirming code conditions and units |
| NFPA 72 navigation | Fire detection, alarm and signaling requirements | Trying to answer fire-alarm questions only from the NEC |
| OSHA safety lookup | PPE, ladders, tools, fall protection and construction safety | Answering from jobsite habit instead of the tested OSHA language |
| Time management | Timed sets, skip-return strategy and quick answer confirmation | Spending too long on one code lookup or calculation |
For Arizona electrical contractor candidates, contractor exam prep works best when contractor licensing rules, contractor exam references, contractor calculations, contractor code navigation and contractor exam timing are practiced together.
Practice the lookup path, not only the answer. After each practice question, record the keyword, reference, article or section, table and calculation that produced the answer. That process builds open-book electrical contractor exam speed.
Your Arizona Electrical Contractor Licensing Roadmap
Seven steps take you from the correct electrical contractor classification to completed Arizona ROC licensing.
1
Choose C-11, CR-11 or R-11
Match the electrical work you plan to perform to the ROC's commercial, dual or residential electrical contractor classification.
2
Confirm the qualifying party and experience
Identify the qualifying party and verify the current electrical experience and documentation requirements for the selected classification.
3
Complete the Arizona SRE
Complete the Arizona Statutes and Rules Training Course and Exam unless the ROC approves a current waiver.
4
Prepare with electrical contractor exam prep
Study the PSI electrical contractor content outline, organize the approved 2017 NEC, NFPA 72 and OSHA references, and complete timed open-book practice.
5
Schedule and pass the electrical contractor trade exam
Take the applicable Arizona PSI electrical contractor trade exam or an accepted NASCLA electrical examination when that path fits your licensing plan.
6
Complete remaining contractor requirements
Complete the background, bond, business and supporting-document requirements that apply to the Arizona contractor license application.
7
Submit the Arizona ROC application
Submit the completed license application, qualifying-party information and required supporting documents to the Arizona Registrar of Contractors.
What Is on the Arizona C-11 / CR-11 Electrical Commercial Exam?
Study according to the current 110-question PSI outline. The bars show each question count relative to the largest exam category.
Service Feeders and Branch Circuits13 questions
Grounding and Bonding13 questions
Special Occupancies and Equipment13 questions
Conductors and Cables12 questions
Raceways and Boxes10 questions
Photovoltaics10 questions
Overcurrent Protection8 questions
General Electrical Knowledge / Motors / Low Voltage / Fire Alarm / Safety5 each
Lighting3 questions
Devices / Illuminated Signs2 / 1
| Electrical Exam Topic | Questions | Study Focus |
|---|---|---|
| Service Feeders and Branch Circuits | 13 | Services, feeders, branch circuits, load calculations and code application |
| Grounding and Bonding | 13 | Article 250, electrodes, bonding and grounding conductor sizing |
| Special Occupancies and Equipment | 13 | Special locations, equipment and related NEC rules |
| Conductors and Cables | 12 | Ampacity, conductor sizing, cable types and installation |
| Raceways and Boxes | 10 | Raceway types, fill, boxes and fittings |
| Photovoltaics | 10 | Solar-electric equipment, photovoltaic requirements and code application |
| Overcurrent Protection | 8 | Overcurrent devices and conductor/equipment protection |
| General / Motors / Low Voltage / Fire Alarm / Safety | 5 each | Theory, motors, communications, NFPA 72 and OSHA |
| Lighting / Devices / Illuminated Signs | 3 / 2 / 1 | Fixtures, devices, switching and sign requirements |
The top six categories contain 71 of the 110 questions. Prioritize feeders, grounding, special occupancies, conductors, raceways and photovoltaics, then reinforce the remaining electrical contractor exam topics through timed exam prep drills.
Current Arizona C-11 / CR-11 Exam Reference Books
Use the exact references and code editions permitted in the current PSI content outline for the state-specific electrical commercial exam.
| Reference | Primary Use | Exam-Room Status |
|---|---|---|
| NFPA 70 - National Electrical Code, 2017 Edition | Services, feeders, grounding, conductors, raceways, motors, protection, special occupancies and photovoltaics | Allowed |
| NFPA 72 - National Fire Alarm Code, 2016 Edition | Fire detection, alarm and signaling systems | Allowed |
| 29 CFR Part 1926 OSHA | Construction safety, PPE, ladders, tools, fall protection and jobsite rules | Allowed |
| Ugly's Electrical Contractor References | Electrical formulas, field data and calculation study support | Study reference; not allowed by the current PSI state outline |
| Photovoltaic Systems / Easy Guide to Solar Electric | Photovoltaic and solar-electric study support | Study references; not allowed by the current PSI state outline |
Code-edition warning: the current state-specific PSI outline lists the 2017 NEC. Do not replace it with NEC 2023 solely because a third-party practice site or general study guide uses a newer edition.
How to Use Your Electrical Books During the Open-Book Exam
Winning open-book habits
- Use the exact code edition listed by PSI
- Add compliant permanent tabs before exam day
- Highlight, underline and annotate before testing only as permitted
- Practice NEC index and article navigation
- Know when to use NFPA 72 or OSHA instead of the NEC
- Complete timed electrical contractor exam prep with the actual references
Avoid these exam-prep mistakes
- Using temporary tabs or removable notes
- Bringing loose or attached extra papers
- Studying from the wrong NEC edition
- Assuming every study book is allowed into the exam center
- Ignoring fire alarm, photovoltaic or safety topics
- Spending too long on one difficult calculation or code lookup
PSI reference rule: approved references may be highlighted, underlined, annotated, indexed and tabbed with permanent tabs before the examination. Temporary tabs and additional loose or attached papers are not permitted.
The Arizona Statutes and Rules Training Course and Exam
The Arizona SRE is separate from the electrical contractor trade exam. The current PSI Candidate Information Bulletin describes the SRE as a computer-based course where applicants learn applicable Arizona statutes and rules and are tested on what they learned.
The SRE applies to new qualifying parties under the current ROC rules unless a waiver condition is satisfied. The trade exam tests electrical knowledge, while the SRE focuses on Arizona contractor statutes and rules.
Use the current ROC and PSI instructions instead of relying on older pages that describe a separate Business Management exam as the standard Arizona electrical contractor licensing requirement.
Arizona C-11 vs CR-11 vs R-11 vs NASCLA Electrical
Choose the contractor classification and exam path before purchasing references because the legal scope and examination blueprint are not identical.
| Path | Focus | Important Note |
|---|---|---|
| C-11 Electrical | Commercial electrical contractor scope | State exam uses the C-11/CR-11 Electrical Commercial PSI outline |
| CR-11 Electrical | Combined commercial and residential electrical contractor scope | Dual classification; state trade prep follows the commercial C-11/CR-11 outline |
| R-11 Electrical | Residential electrical contractor scope | 110 questions and 240 minutes, but different subject weights from C-11/CR-11 |
| NASCLA Electrical Contractor | Accredited master/unlimited electrical technical exam | Accepted as an alternate trade exam path for eligible C-11 and CR-11 applicants |
| NASCLA Residential Electrical | Accredited residential electrical technical exam | Alternate technical exam path for qualifying R-11 applicants |
Choose the exam path before buying books. Arizona state and NASCLA electrical examinations use different content outlines and reference libraries.
Arizona Electrical Contractor License Requirements
License Applicant
Qualification Path
- Choose C-11, CR-11 or R-11 based on planned electrical work
- Identify the qualifying party
- Document qualifying electrical experience
- Verify current ROC examination and waiver requirements
Electrical Exam Candidate
Exam Prep Focus
- 110-question state trade exam
- 240-minute open-book format
- 2017 NEC, NFPA 72 and OSHA navigation
- Timed contractor exam prep and calculation practice
License Completion
ROC Completion
- Complete the SRE unless a waiver applies
- Complete required background and business steps
- Maintain the required contractor bond
- Submit the completed ROC license application
90-Day Arizona Electrical Contractor Study Plan
Use the official PSI blueprint to balance NEC navigation, NFPA 72, OSHA, electrical calculations and timed open-book exam prep.
Weeks 1 and 2: Setup
- Verify the current PSI bulletin and trade outline
- Confirm the 2017 NEC, NFPA 72 and OSHA references
- Create a permanent-tab plan
- Practice index navigation
Weeks 3 and 4: Feeders and Grounding
- Service feeders and branch circuits
- Grounding and bonding
- Load and conductor calculations
- Timed NEC lookup
Weeks 5 and 6: Conductors and Raceways
- Conductors and cables
- Raceways and boxes
- Fill and ampacity practice
- Overcurrent protection
Weeks 7 and 8: Special Systems
- Special occupancies and equipment
- Motors and low voltage
- Lighting and devices
- Illuminated signs
Weeks 9 and 10: Fire Alarm, Safety and Solar
- NFPA 72 navigation
- OSHA safety topics
- Photovoltaics
- Mixed timed exam prep
Weeks 11 and 12: Simulation
- Full timed practice sessions
- Weak-topic repair
- Book inspection check
- Exam-day pacing plan
How Hard Is the Arizona Electrical Contractor Exam?
The challenge comes from combining electrical theory, calculations, NEC navigation, fire alarm rules, OSHA safety, photovoltaic systems and 110 questions under a four-hour time limit.
Common avoidable problems include slow NEC navigation, weak feeder or grounding calculations, confusing code tables, using the wrong NEC edition and spending too long on one question. Structured contractor exam prep turns the PSI outline into a repeatable electrical contractor reference and calculation system.
Arizona Electrical Contractor Exam Day Checklist
Bring and do this
- Follow current PSI check-in instructions
- Bring current identification required by PSI
- Bring only authorized exam-room references
- Use compliant permanent tabs and prior annotations
- Keep NEC, NFPA 72 and OSHA in a consistent order
- Use a skip-return strategy for slow calculations
Do not do this
- Use temporary tabs or removable notes
- Bring loose or attached extra papers
- Use NEC 2023 for the state exam without confirming a PSI change
- Bring study-only books into the examination center
- Spend too long on one difficult calculation
- Assume passing the trade exam alone issues the contractor license
After You Pass the Arizona Electrical Contractor Exam
Passing the electrical contractor trade exam completes only part of the Arizona contractor licensing process. The applicant must still satisfy the ROC requirements that apply to the qualifying party, SRE, background, bond, business and final license application.
If you choose a NASCLA electrical path, passing the accredited examination does not automatically issue an Arizona contractor license. You must still complete the Arizona ROC licensing process for C-11, CR-11 or R-11.
If you do not pass the PSI exam, the current 2026 bulletin requires a 30-day wait before retesting. Candidates have three attempts before a 90-day waiting period applies to the examination they did not pass.
Arizona Electrical Contractor Exam Prep Options
Select contractor exam prep that matches the exact electrical classification and exam path you are taking. Pricing is intentionally excluded so the page stays focused on licensing, exam data and preparation.
C-11 Electrical Commercial Exam Prep
Commercial Contractor Study
- Current C-11/CR-11 PSI content outline
- Electrical commercial technical review
- 2017 NEC, NFPA 72 and OSHA navigation
- Timed open-book contractor exam prep
CR-11 Dual Electrical Exam Prep
Residential + Commercial Path
- Commercial electrical exam preparation
- Dual-classification licensing context
- Reference navigation and calculations
- Structured live, recorded and self-study options
R-11 Residential Electrical Exam Prep
Residential Contractor Study
- Residential PSI content outline
- Services, grounding, raceways and conductors
- 2017 NEC, NFPA 72 and OSHA preparation
- Residential timed exam simulation strategy
Work Under the Correct Arizona Electrical Contractor License
Electrical contractor exam preparation helps you prepare for testing, but actual contracting authority comes from the classification issued by the Arizona Registrar of Contractors.
· Use C-11 for qualifying commercial electrical contractor work
· Use R-11 for qualifying residential electrical contractor work
· Use CR-11 when the business needs both commercial and residential electrical scope
· Maintain the contractor license, bond and qualifying-party requirements
Use the correct licensing path before bidding, contracting or performing regulated electrical work in Arizona.
Arizona Electrical Contractor Exam Prep FAQ
License and Exam Basics
The Arizona Registrar of Contractors, commonly called the ROC, regulates Arizona contractor licensing. Electrical classifications include C-11 Electrical, R-11 Electrical, and CR-11 Electrical.
C-11 is Arizona's commercial electrical contractor classification. It covers qualifying installation, alteration, and repair of electrical wiring, materials, and equipment under the scope published by the Arizona Registrar of Contractors.
CR-11 is the dual electrical classification that combines the scopes permitted by Arizona's C-11 commercial electrical and R-11 residential electrical classifications.
R-11 is Arizona's residential electrical contractor classification. The ROC scope states that it allows the licensee to install and repair residential electrical systems.
PSI Services administers the Arizona Registrar of Contractors trade examination program, including the state-specific C-11/CR-11 Electrical Commercial and R-11 Electrical Residential exams.
The current PSI content outline lists 110 questions for the Arizona C-11/CR-11 Electrical Commercial contractor trade exam.
PSI currently allows 240 minutes, or four hours, for the 110-question C-11/CR-11 Electrical Commercial contractor exam, so contractor exam prep should include full-length contractor timing practice.
The current PSI C-11/CR-11 and R-11 state contractor trade exam outlines list a 70 percent minimum passing score for the electrical contractor exam.
Yes. The state-specific Arizona C-11/CR-11 Electrical Commercial exam is open book for approved references prepared according to PSI rules.
The current PSI state-specific C-11/CR-11 and R-11 electrical exam outlines list NFPA 70, National Electrical Code, 2017 edition, for code questions.
Books, SRE, NASCLA and Exam Prep
The current PSI C-11/CR-11 outline allows 29 CFR Part 1926 OSHA, NFPA 70 National Electrical Code 2017, and NFPA 72 National Fire Alarm Code 2016, subject to current PSI preparation and testing rules.
No. The current PSI C-11/CR-11 state exam outline lists Ugly's Electrical Contractor References as study material that is not allowed in the examination center.
The current PSI state C-11/CR-11 contractor outline lists Photovoltaic Systems and The Easy Guide to Solar Electric Part II as contractor study references that are not allowed in the contractor examination center.
Yes. PSI permits approved references to be highlighted, underlined, annotated, and indexed before the exam. Permanent tabs are allowed, while temporary tabs and additional loose or attached papers are not permitted.
The PSI contractor exam outline includes 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 for contractor exam prep.
The largest current C-11/CR-11 categories are Service Feeders and Branch Circuits, Grounding and Bonding, and Special Occupancies and Equipment with 13 questions each, followed by Conductors and Cables with 12, Raceways and Boxes and Photovoltaics with 10 each.
The Arizona licensing process includes the Statutes and Rules Training Course and Exam, or SRE, for qualifying parties unless a current ROC waiver applies. The SRE is separate from the electrical contractor trade exam.
Yes. Arizona states that applicants for C-11, CR-11, and R-11 may use the applicable NASCLA Accredited Electrical Examination Program in lieu of the Arizona ROC trade exam, subject to current licensing requirements.
The current 2026 PSI Candidate Information Bulletin says candidates must wait 30 days before retaking a failed exam. Candidates have three attempts, and after three failed attempts they must wait 90 days before retaking the exam they did not pass.
Use the current PSI topic weights, study with the exact approved reference editions, practice NEC, NFPA 72, and OSHA navigation, prepare permanent tabs before testing, drill electrical calculations, and complete timed contractor exam prep sessions under realistic conditions.
1 Exam Prep Arizona Electrician Licensing Walkthrough
Explore Arizona Electrical Contractor License and Exam Prep Resources
Use official licensing sources and focused contractor exam prep for the complete C-11, CR-11 or R-11 electrical contractor licensing and testing pathway.
Arizona electrical contractor exam prep should connect contractor licensing, exam content, exam prep references, timed exam practice and practical prep into one repeatable contractor study plan.
Ready to Prepare for the Arizona Electrical Contractor Exam?
Build electrical knowledge, 2017 NEC navigation speed, NFPA 72 familiarity, OSHA lookup skills, calculation accuracy and timed open-book exam habits for the Arizona C-11, CR-11 or R-11 contractor licensing path.
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