What is the minimum age requirement to be an inspector/mechanic?

Answer: D — 18 years old

The concept here is age eligibility for performing official vehicle inspections. Inspecting vehicles and issuing inspection certificates is a formal role that involves legal responsibility, certification, and the ability to enter into official documents. This requires being an adult, which is why the minimum age is 18. At 18 you can meet the state’s licensing and liability requirements to serve as an inspector. The other ages aren’t sufficient because they’re under 18, and those ages typically don’t meet the legal and certification prerequisites for performing official inspections. You might work in a shop in a helper or trainee capacity, but signing off on inspections starts at 18.