Certification or Licensing
One indicator of quality for entry-level mechanics recognized by everyone in the industry is certification by the National Institute for Automotive Service Excellence. There are eight areas of certification available in medium-heavy truck repair: Gasoline Engines, Diesel Engines, Drive Train, Brakes, Suspension & Steering, Electrical/Electronic Systems, Heating, Ventilation & Air Conditioning, and Preventive Maintenance Inspection. There are eight areas of certification available in transit bus repair: Compressed Natural Gas Engines, Diesel Engines, Drive Train, Brakes, Suspension & Steering, Electrical/Electronic Systems, Heating Ventilation & Air Conditioning, and Preventive Maintenance & Inspection. Applicants must have at least two years of experience in the field and pass the examinations related to their specialty. To maintain their certification, mechanics must retake the examination for their specialties every five years.
Other Requirements
Diesel mechanics need a Class A driver's license.
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