What 382.603 means in plain language
FMCSR 382.603 requires that any designated supervisor responsible for overseeing a carrier's alcohol and substance abuse program must complete formal training on how to recognize signs of impairment or misuse. This is a carrier-level and management responsibility, not primarily a driver-facing rule—but drivers can be cited if their employer has failed to ensure a supervisor received this training.
The regulation exists because supervisors are the front line of detection. They need to recognize behavioral, physical, and performance indicators that might suggest a driver is under the influence or has a substance issue that could endanger the public. Without trained supervisors, a carrier loses its ability to catch problems before they reach the road.
What our enforcement data actually shows
Across our 13 million+ inspection records, 382.603 has zero citations—all-time, in the last 12 months, and in the last 90 days. This is one of the rarest violations in the Federal Motor Carrier Safety Regulations database. No drivers or carriers have been placed out of service under this code in our records, and the OOS rate is 0.0%.
The near-zero enforcement volume suggests that either carrier supervisors are universally receiving the required training, or that FMCSR officers rarely cite the supervisor training requirement directly—instead citing downstream violations (like driver impairment or possession of alcohol) that result from weak supervision.
Who gets cited most
With zero citations recorded in our database, state-by-state and carrier-by-carrier breakdowns are not applicable. This violation is not appearing in roadside enforcement patterns.
How severe is this compared to similar codes
382.603 sits in the Controlled Substances/Alcohol category alongside far more frequently cited violations. For context, our records show 3,947 citations for code 392.4A-DOSP (Use of drugs) with a 95.9% out-of-service rate, and 3,919 citations for 392.4(a) (Use of drugs) with a 96.9% OOS rate. Driver-level substance violations—such as 392.5(a)(2) (BAC 0.04+)—generated 778 citations with a 99.2% OOS rate.
The difference is stark: 382.603 is a carrier compliance requirement; the peer codes are driver conduct violations. Driver violations almost always result in immediate removal from service. A supervisor training citation, by contrast, would typically trigger a compliance notice or audit, not an automatic OOS order.
How to avoid it
If you have been cited for 382.603, the violation is not about your personal conduct—it reflects a gap at your carrier. However, drivers can encourage compliance:
- Ask your safety manager or HR department whether your carrier's designated supervisor(s) have completed DOT-approved training on alcohol and substance abuse indicators. If they have not, report this to management immediately.
- Familiarize yourself with your carrier's substance abuse policy and the signs your supervisors have been trained to recognize. This helps you understand expectations and report any peer conduct that violates the program.
- Document any training you receive on this topic. Some carriers distribute annual refresher materials to all drivers. Keep records; they demonstrate your carrier's commitment to compliance.
- If your carrier lacks a formal training program, raise the issue with your safety department. This is a carrier obligation, not a driver responsibility, but driver awareness accelerates correction.