Candidates must be at least 18 years old and have a high school diploma, although GED may be acceptable. Completion of two semesters of algebra with a passing grade is highly desirable but one semester is usually required. Candidates are carefully screened and must achieve a passing score on the qualifying examination. A joint apprenticeship program is set up by the International Brotherhood of Electrical Workers and the National Electrical Contractors Association. Another method of entry into this occupation is completion of an electrical construction and maintenance program at a vocational or trade college.
Graduates work as trainees, gaining journey-level status after from six months to two years.
High school students wishing to enter by either route should take courses in physics, blueprint reading and shop. Applicants must be in good physical condition. They must have normal vision, and good color perception to distinguish between various colored wires. Finger and manual dexterity is needed for using hand and power tools. Many employers require applicants to pass a physical examination as a condition of employment.