The following table lists some of the most common parts and accessories-related violations.
| Violation | Relevant Code |
| Not having required operable lamps | 393.9 |
| Clamp/roto-chamber type brake(s) out of adjustment | 393.47(e) |
| No/discharged/unsecured fire extinguisher | 393.95(a) |
| Inoperative turn signal | 393.9TS |
| Tire - flat and/or audible air leak
| 393.75(a) |
| No/defective lighting devices/reflective devices/projected
| 393.11 |
| Automatic brake adjuster CMV manufactured on or after 10/20/1994—air brake | 393.53(b) |
| Windshield wipers inoperative/defective
| 393.78 |
| Tire tread depth less than 2/32 of an inch | 393.75(c) |
| No/insufficient warning devices | 393.95(f) |