1. You usually need a high school diploma.
2. To gain trade certification as an elevator constructor or mechanic, or refrigeration and air conditioning mechanic, you need a three- to five-year apprenticeship program or a combination of experience and formal education in your specialty.
3. To be a railway carman/women or a machine fitter, you need to complete an apprenticeship program or have on-the-job training.
4. Most recent entrants have a community college diploma.