These are some of the components of your car or truck that will be inspected for proper condition and/or operation, some of which you can check yourself prior to your inspection:
Horn: Must be operative
Mirrors: Must not be missing or damaged
Headlights: Must operate properly, and be identical, the proper shade, and undamaged
Taillights: Must be operative
Tires and wheels: Must not have excessive damage or be in need of replacement
Brakes: Must operate properly and not have any brake fluid leaks in the system
Safety belts: Must be in good condition and operate properly