ICC Master Electrician (G16, 2017 NEC)
Practice the ICC Master Electrician (G16, 2017 NEC) exam the way it is given — 100 questions weighted like the real outline, on the 2017 NEC, with every answer explained and cited.
One exam, 100 questions
You need 75% overall (ICC's Exam Catalog gives the mark for each exam; confirm it when you book). Calculations sit inside the outline areas rather than in a separate portion, and our full-length practice exam draws from each area in the same proportions.
ICC Master Electrician (G16)
100 scored · 300 min- General Knowledge (including plan reading)12
- Services16
- Feeders4
- Branch Circuits and Conductors16
- Wiring Methods and Materials19
- Equipment and Devices10
- Control Devices3
- Motors and Generators8
- Special Occupancies, Equipment, and Conditions12
About the ICC Master Electrician (G16, 2017 NEC)
Granted by International Code Council (ICC)
ICC Master Electrician exam G16 (Pearson VUE): 100 questions in 5 hours, open book on the 2017 NEC. For jurisdictions that still test on the 2017 code; the 2023-NEC version is R16.
Eligibility Requirements
ICC sets no experience requirement for this exam. The city, county or state that accepts the result sets its own experience and application rules; if it requires pre-authorization, you register with the ICC ID number from its Eligibility To Test Notice.
On the 2017 NEC (ICC G series)
ICC still offers its electrician exams on four NEC editions: the F (2014), G (2017), T (2020) and R (2023) series. These practice exams are for the G series, on the 2017 NEC. If your city, county or state tests on the 2023 NEC, book the R series instead; we have R16, R17 and R18 practice exams too. These are rules that moved between 2017 and 2023.
| Topic | 2023 NEC (R series) | 2017 NEC |
|---|---|---|
| Conductor ampacity table310.15(B)(16) | Table 310.16 | Table 310.15(B)(16) |
| Conductor types and insulation tables310.104 | Table 310.4(1) | Table 310.104(A) |
| Dwelling GFCI receptacles210.8(A) | All 125–250 V receptacles in the listed locations | 125 V, 15 and 20 A receptacles in the listed locations |
| Dwelling general lighting load (3 VA per ft² in both)220.12 | 220.41 | Table 220.12 |
What's Included
Every plan gets the same full-access study library.
Scheduling & Fees
Where to take it
- Administered by
- ICC (Pearson VUE)
- Scheduling window
- Book up to one calendar day before you want to test, if seats are available.
- Retake policy
- Wait 10 days before retaking a failed exam.
Fees
- G16 exam fee (Pearson VUE)
- $120
Keeping Your Certification Active
Renewal requirements
- Cycle
- Set by the city, county or state that accepts your result
- Continuing education
- License renewal and continuing education are set by the jurisdiction that accepts your result.
Reciprocity
ICC results are not a license. Each jurisdiction decides whether it accepts a G-series result, and at which code edition.
Sources: ICC National Contractor/Trades Examination Information Bulletin (published June 30, 2026), pp. 20-22 · Pearson VUE: ICC Contractor/Trades program · Electrical Safety Professionals: testing FAQ (G16/G17/G18 for Nevada ID cards) · Missouri Office of Statewide Electrical Contractors: approved examinations
Frequently asked questions
How is the ICC Master Electrician (G16) exam structured?+
ICC exam G16: 100 questions in 5 hours, open book on the 2017 NEC. ICC's master electrician exams require 75%; confirm the passing score in ICC's Exam Catalog when you book. Services (16%), branch circuits (16%), wiring methods (19%) and general knowledge including plan reading (12%) carry the most weight.
How is G16 different from R16?+
Same outline and format; G16 is on the 2017 NEC and R16 on the 2023 NEC. Many rules were renumbered or changed between the two editions, so study from the edition your jurisdiction tests. Our G16 questions all cite the 2017 section.
Which code edition is the exam on?+
The 2017 NEC. ICC offers each electrician exam on four editions (F 2014, G 2017, T 2020, R 2023), and your jurisdiction decides which one it accepts. If it tests on the 2023 NEC, book the R-series exam instead.
Who accepts the G-series exams?+
ICC is not a licensing agency: each city, county or state decides which exam and code edition it accepts. Electrical Safety Professionals issues the Clark County, Las Vegas and Reno, Nevada electrician ID cards on G16, G17 and G18 (we have separate Nevada practice exams), and Missouri's approved-exam list for its statewide electrical contractor license includes G16 and G17. Check with your jurisdiction before you book.
Is it open book?+
Yes. The references are the 2017 NEC and Ugly's Electrical Reference (any edition). Know where the rules live in the 2017 book: the exam rewards finding a section quickly as much as knowing it.
Where do I take it, and what does it cost?+
ICC gives the exams at Pearson VUE test centers for $120. After a failed attempt you wait 10 days before you can retest.
What do I need before I can sit the exam?+
ICC sets no experience requirement for the exam itself. The jurisdiction that issues your license sets its own experience, application and renewal rules, so confirm them with your city or county.
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