Job Zone Three
no high school diploma/GED or
high school diploma/GED
usually needed

Medium job preparation is needed for signal and track switch repairers.


Previous work-related skill, knowledge, or experience is needed for these careers. For example, an electrician must be in an apprenticeship for three to four years or have several years of job training. You may need to pass a test to get a license to do the job.


Employees in these careers need one or two years of training. Both on-the-job experience and informal training with experienced workers may be needed. An apprenticeship program may be a good choice for these careers.

Job Zone Three

Different careers need different amounts of preparation. Each O*NET career is in one of five Job Zones, which are groups of careers that need the same level of experience, education, and training. Explore more careers in Job Zone Three.