When people think of DOT compliance, the focus often falls on hours-of-service rules, driver qualifications, or drug and alcohol testing. But there’s another piece that is just as important—yet frequently overlooked: vehicle maintenance.
Neglecting this critical area doesn’t just risk citations and fines—it can also lead to serious safety hazards on the road.
The Federal Motor Carrier Safety Administration (FMCSA) requires all motor carriers to systematically inspect, repair, and maintain their vehicles (49 CFR §396.3). These rules are in place to ensure that vehicles are roadworthy and safe for both drivers and the public.
Failure to comply can result in:
Costly penalties
Out-of-service orders
Higher CSA scores
Increased risk of accidents
In short, staying on top of maintenance is not only a compliance issue—it’s a safety imperative.
While the DOT focuses on vehicles being safe for highway use, OSHA has requirements to protect workers during inspections, repairs, and operations in the workplace. Both agencies expect organizations to:
Keep vehicles in safe operating condition
Remove unsafe vehicles from service until repaired
Train employees on safe inspection and maintenance practices (OSHA Motor Vehicle Safety)
This overlap means organizations must think of vehicle maintenance as part of both compliance and overall workplace safety.
Even the most experienced operators sometimes underestimate maintenance needs. Common reasons include:
Cost pressures – Cutting corners to save money in the short term
Scheduling challenges – Difficulty coordinating downtime for inspections and repairs
Recordkeeping gaps – Missing or incomplete logs, which are required during audits
Complacency – Assuming “if it’s running, it must be fine”
Unfortunately, the consequences of overlooking maintenance often cost far more than proactive upkeep.
A solid vehicle maintenance program should include:
Regularly scheduled service checks (tires, brakes, fluids, lights, etc.) prevent small problems from turning into major issues.
DOT requires pre-trip and post-trip inspections to ensure safety-critical parts are functioning (FMCSA Vehicle Inspection Requirements).
FMCSA requires that inspection and maintenance records be retained for at least one year, plus six months after a vehicle leaves your control (FMCSA Guidance).
Maintenance work should also follow OSHA safety standards to protect technicians and operators (OSHA Vehicle Maintenance).
Using tools such as diagnostic software, collision warning systems, or telematics helps identify risks earlier and keeps fleets roadworthy.
Vehicle maintenance is about more than “passing an audit.” It ensures safer roads, fewer breakdowns, and better protection for employees and the communities they serve.
By making maintenance part of the culture—not just a checklist—organizations strengthen both compliance and long-term operational efficiency.
Vehicle maintenance is the backbone of DOT compliance. Skipping it can lead to violations, preventable accidents, and serious financial loss. Consistent inspections, proper records, and proactive repairs are what keep your fleet safe and compliant.
At Sentry Road, we can help your organization stay ahead of compliance requirements—whether it’s vehicle maintenance tracking or other key safety programs—so you can focus on moving forward with confidence.