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Commercial Electrical Inspector - E2
The Commercial Electrical Inspector (E2) is the International Code Council's national certification exam for inspectors of electrical systems in commercial and industrial buildings and structures with no limit as to voltage or amperage: an 80-question, 3.5-hour, open-book multiple-choice test on the National Electrical Code (NFPA 70, 2020 and 2023 editions), delivered via ICC's PRONTO proctored online testing option (in person or online remote proctoring) for a USD 320 exam fee.
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Questions80 questions
Testing time3.5 hours (3 hours 30 minutes)
ScoringPassing score set by the Code Council and its Exam Development Committee as a scale score of 75; score reports are pass/fail (passing reports show a 'Pass' notification only)
Exam feeUSD 320 (ICC Store list price for the E2 exam; ICC members receive discounted exam pricing — member price shown at purchase via myICC)
Prep options
Study resources for E2
Independent prep
Courses and study resources
Exam overview
What to know before choosing your prep
- Who runs it
- ICC
- Category
- Building Codes & Inspection
- Current version
- Offered against two code-year editions — the 2020 and the 2023 NFPA 70 National Electrical Code (NEC); candidate selects the code year at registration
- Where it applies
- United States — national
- Exam languages
- English
- Testing provider
- ICC PRONTO (Proctored Remote Online Testing Option; remote proctoring by ProctorU) — the catalog lists PRONTO as the only available method for E2; Pearson VUE administers other ICC testing programs (UST/AST, Contractor/Trades) but not E2
- Format
- Computer-based, open-book exam delivered via ICC's PRONTO (Proctored Remote Online Testing Option), in person at test sites or online with a remote proctor; approved references are the NFPA 70 National Electrical Code (2020 or 2023 edition; digital reference available at no additional cost via DC for Exams) and Ugly's Electrical References (any edition)
- Availability
- Year-round by appointment — PRONTO online proctoring available 24/7, 365 days a year, plus in-person PRONTO testing; ProctorU schedules exams within 15-minute intervals
- Results
- Results available immediately after completion, online or at the testing site; failing candidates receive a diagnostic report
- Remote testing
- Available
Exam structure
80 four-option multiple-choice questions (one option scored correct), open book, across eight content areas: General Requirements 10% (plan reading, code terminology and communication, conductors), Services 17%, Branch Circuit and Feeder Requirements 19%, Wiring Methods and Distribution Systems 19%, General Use Equipment 12%, Special Occupancies 9%, Special Equipment 7%, Special Systems 7%
Where rules vary
Uniform national exam (catalog State field 'National/All'); jurisdictions adopt/recognize the credential individually. California and other states use ICC certification as the inspector credential standard, but the exam itself does not vary by state.