NCCER Commercial Electrician Knowledge Verified credential — Requirements & Free Practice

US · License preparation

200 free questions · Answer explanations · No signup required

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Start with an exam below. Your examination requirements depend on your application pathway. View licensing requirements

Licenses, application pathways and examination requirements

Each license and applicant pathway has its own requirements and exemptions. Choosing practice questions does not determine your eligibility.

Licensing authority: NCCER

Initial by examination

Account: The candidate creates an NCCER Account and agrees to NCCER Terms and Conditions; the former paper Registration and Release form is no longer required.
Administration: NCCER-accredited Assessment Programs administer the assessment; some provide public service, and NCCER Find a Center identifies programs open to the public for enrollment/registration.
Separate Performance Verification: A separate Performance Verification awards a Performance Verified credential; NCCER craft certification requires both credentials.

Examination outline

Electrical Safety (5.21%)
Hand Bending (3.13%)
Electrical Theory One (4.17%)
Electrical Test Equipment (4.17%)
Introduction to the National Electrical Code® (5.21%)
Raceways, Boxes, and Fittings (4.17%)
Conductors (3.13%)
Introduction to Electrical Blueprints (5.21%)
Wiring: Commercial and Industrial (5.21%)
Grounding (5.21%)
Conduit Bending (3.13%)
Boxes and Fittings (4.17%)
Conductor Installations (4.17%)
Conductor Terminations and Splices (3.13%)
Installation of Electric Services (3.13%)
Circuit Breakers and Fuses (3.13%)
Contactors and Relays (2.08%)
Electric Lighting (3.13%)
Load Calculations – Branch Circuits (4.17%)
Conductor Selection and Calculations (4.17%)
Overcurrent Protection (4.17%)
Raceway, Box and Fitting Fill Requirements (2.08%)
Wiring Devices (1.04%)
Distribution Equipment (3.13%)
Distribution System Transformers (2.08%)
Lamps, Ballasts, and Components (2.08%)
Load Calculations – Feeders and Services (2.08%)
Standby and Emergency Systems (2.08%)
Fire and Alarm Systems (2.08%)

Examination sources