If you test, commission, or maintain substation equipment, NETA or NICET certification is the credential owners, utilities, and engineering firms ask about first. Many project specifications require that acceptance and maintenance testing be performed or supervised by a technician certified by one of the two, and the level on your card largely decides what work you can lead. This guide explains both programs, what each level requires, how they differ, and how technicians move from one level to the next. Requirements change, so confirm the current details with NETA or NICET before you apply.
NETA certification
NETA, the InterNational Electrical Testing Association, is an ANSI-accredited standards developer. It publishes the acceptance testing specification (ANSI/NETA ATS), the maintenance testing specification (ANSI/NETA MTS), the commissioning specification (ANSI/NETA ECS), and the standard for certifying electrical testing technicians (ANSI/NETA ETT, currently the 2026 edition). The ETT standard defines four technician levels, each with its own training, experience, and examination requirements. Certification is personal: it belongs to the technician, not the employer, and it has to be kept current through recertification.
The four NETA levels
Each level describes how independently a technician can work and how much of the job they can own.
Level 1: Trainee Technician
An entry-level technician who performs testing under the supervision of a more senior certified technician. NETA requires a high school diploma or GED, and the Level 1 exam is administered by the employer rather than by NETA. Level 1 work is learning the test sets, the safety procedures, and the documentation, while someone else owns the test plan and the results.
Level 2: Certified Assistant Technician
A technician who can perform routine tests and record results correctly. NETA requires two years of related experience, 40 hours of safety training, and 160 hours of electrical training, plus a passing score on a 100-question proctored exam. Level 2 is the first level examined by NETA.
Level 3: Certified Technician
A technician who can plan the testing, run complex work such as protective relay testing and commissioning, interpret results, and supervise Level 1 and 2 technicians. NETA requires five years of related experience and cumulative training of 64 safety hours and 400 electrical hours, plus a 100-question proctored exam.
Level 4: Certified Senior Technician
The senior technical authority on a job site, responsible for the overall test program, resolving problems in the field, and reviewing the work of others. NETA requires ten years of related experience and cumulative training of 104 safety hours and 600 electrical hours, plus a 65-question proctored exam.
Exams and documentation
- Levels 2, 3, and 4 each require passing a closed-book, proctored NETA exam, taken in order. Level 1 is examined by the employer.
- Two or more years of technical education in an electrical field can count as up to one year of related experience.
- Applications require documented, verifiable testing experience, so keep a log of the equipment types, voltage classes, and tests you perform from your first day.
- Employers usually sign off on experience claims, which is one more reason to work for a firm that keeps good records.
- Requirements are set by the current ANSI/NETA ETT standard and NETA policy and can change between editions. Check netaworld.org for the current rules before you apply.
NICET Electrical Power Testing certification
NICET, the National Institute for Certification in Engineering Technologies, certifies technicians through its Electrical Power Testing (EPT) program. It also uses four levels, and each one requires passing that level's exam and every lower-level exam, documented full-time work history, and verified performance measures signed off by a supervisor.
NICET Level I
At least 6 months of full-time experience supporting the testing and maintenance of electrical power equipment (up to 3 months of related electrical power work can count), the Level I exam, and the Level I performance measures.
NICET Level II
2 years of full-time experience in inspection, testing, and maintenance of electrical power equipment, the Level I and II exams, and the Level I and II performance measures.
NICET Level III
5 years of full-time testing experience, including 1 year supervising and managing two- or three-person test crews, the Level I to III exams and performance measures, and a personal recommendation showing independent technician responsibility.
NICET Level IV
10 years of full-time experience testing complex electrical power equipment and systems, including at least 2 years supervising multi-crew projects, the Level I to IV exams and performance measures, a personal recommendation, and a major project write-up showing senior responsibility for a complex testing project.
NETA or NICET: which one?
- The experience ladder is nearly the same: about 2, 5, and 10 years for Levels II, III, and IV in both programs.
- NETA sets explicit safety and electrical training-hour minimums at each level. NICET instead requires supervisor-verified performance measures and, at Levels III and IV, documented supervision of test crews.
- NETA Level 1 is examined by the employer; NICET examines every level, starting at Level I.
- Many testing specifications, including the ANSI/NETA acceptance and maintenance specifications, accept either credential for qualified testing technicians. Check what your employer, client, or project specification actually requires before choosing.
Keeping certification current
Neither certification is a one-time event. NETA Levels 2 through 4 renew every three years, either by earning Continuing Technical Development (CTD) credits (24 for Level 2, 48 for Levels 3 and 4) or by passing the exam again. Only NETA-recognized training counts toward CTDs. NICET certification also renews every three years, with 90 continuing professional development (CPD) points per certification drawn from at least two categories. Plan for either the same way you plan for NFPA 70E retraining: track the credits as you earn them instead of reconstructing them at renewal time.
What the job actually involves
A substation technician runs the tests that tell an owner whether equipment is safe to energize or keep in service: insulation resistance, contact resistance, circuit breaker timing, transformer turns ratio, power factor and dissipation factor, partial discharge, battery testing, and protective relay testing. The work often happens during planned outages, at night or on weekends, and involves travel. It also means working near energized equipment, so the safety side (NFPA 70E, switching orders, lockout/tagout) matters as much as the test procedures.
How to get started
- Build the electrical foundation first: an electrical or electronics technology program, military electrical experience, or time as an electrician all give you a head start.
- Get hired as a trainee by a NETA Accredited Company or another testing firm, where you can work under certified technicians and log qualifying experience.
- Learn the standards you will be working to, starting with ANSI/NETA ATS and MTS and NFPA 70E.
- Pick NETA or NICET based on what your employer and clients require, then sit for the next level as soon as your documented experience meets the requirement, rather than waiting for a promotion to prompt it.
Conclusion
NETA and NICET certification are the clearest signals in the testing industry of what a technician can be trusted to do on their own. Start logging experience early, learn the ATS and MTS specifications, and move up a level as soon as you qualify. If you are weighing a career in substation testing or building a testing team, ClarkTE is glad to talk through where to start.
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