Truck accident cases are not car accident cases. That distinction matters more than most people realize, and it starts with one federal agency: the Federal Motor Carrier Safety Administration (FMCSA).
The FMCSA sets the safety rules that every commercial trucking operation in the United States must follow. When a truck driver or carrier violates those rules and someone gets hurt, those violations become powerful evidence in a personal injury or wrongful death lawsuit. Understanding how these regulations work gives you a clearer picture of what your attorney should be investigating after a serious crash.
Hours of Service: The Rules That Prevent Fatigued Driving
Driver fatigue is one of the leading causes of commercial vehicle crashes. To combat this, the FMCSA enforces strict Hours of Service (HOS) rules under 49 CFR Part 395.
For property-carrying drivers (the category that covers most 18-wheelers and commercial trucks), the current rules set the following limits:
- 11-Hour Driving Limit. A driver may drive a maximum of 11 hours after 10 consecutive hours off duty.
- 14-Hour Driving Window. A driver may not drive beyond the 14th consecutive hour after coming on duty, following 10 consecutive hours off duty. Off-duty time does not extend this 14-hour window.
- 30-Minute Break Requirement. After 8 cumulative hours of driving without at least a 30-minute interruption, the driver must take a break. That break can be satisfied by any non-driving period of 30 consecutive minutes, including on-duty not driving time.
- 60/70-Hour Weekly Limit. A driver may not drive after 60 hours on duty in 7 consecutive days, or 70 hours in 8 consecutive days. Drivers can reset this clock by taking 34 or more consecutive hours off duty.
Here is why this matters for your case. When a fatigued truck driver causes a crash, their HOS logs often reveal the violation. And since December 2017, most commercial drivers have been required to use Electronic Logging Devices (ELDs) under 49 CFR Part 395, Subpart B. ELDs connect directly to the truck's engine and automatically record driving time, engine hours, vehicle miles, and GPS location data. That digital trail is much harder to falsify than the old paper logbooks.
An experienced truck accident attorney will subpoena ELD data early in the case, before the carrier has a chance to let records expire. Carriers are only required to retain ELD records for six months, so acting fast is not optional.
Drug and Alcohol Testing: A System Built to Catch Impaired Drivers
The FMCSA's drug and alcohol testing program, governed by 49 CFR Part 382, applies to all drivers who operate commercial motor vehicles requiring a commercial driver's license (CDL).
Under these regulations, carriers must conduct six types of drug tests: pre-employment, random, reasonable suspicion, post-accident, return-to-duty, and follow-up. Alcohol testing follows the same categories, though pre-employment alcohol testing is optional.
The minimum annual random testing rates are 50% of all driver positions for drugs and 10% for alcohol. When a crash occurs that involves a fatality, the carrier must conduct post-accident drug and alcohol testing on each surviving driver. Testing is also required in crashes where a vehicle is towed from the scene or someone receives medical treatment away from the scene, provided the CMV driver receives a citation.
The FMCSA also operates the Drug and Alcohol Clearinghouse, a secure online database that went live in January 2020. Employers must query this database before hiring any CDL driver and at least once per year for every active CDL driver on their roster. The Clearinghouse tracks positive test results, test refusals, and return-to-duty status across all carriers nationwide. As of November 2024, a driver with a "prohibited" Clearinghouse status will lose their CDL until they complete the return-to-duty process.
For your case, this means your attorney can investigate whether the at-fault driver had prior drug or alcohol violations on record, whether the carrier ran the required Clearinghouse queries before putting that driver behind the wheel, and whether post-accident testing was conducted within the required timeframes. A carrier that skipped these steps faces serious liability exposure.
Vehicle Inspection and Maintenance: Paper Trails That Win Cases
Under 49 CFR Part 396, every motor carrier must systematically inspect, repair, and maintain all commercial vehicles under its control. Parts and accessories must be in safe and proper operating condition at all times.
The regulations require three layers of inspection:
- Annual Periodic Inspection. Every commercial motor vehicle must undergo a full periodic inspection at least once every 12 months, covering brakes, steering, lighting, tires, suspension, and other components listed in Appendix A to Part 396. The carrier must retain the inspection report for 14 months and keep documentation of the most recent inspection on the vehicle itself.
- Driver Vehicle Inspection Reports (DVIRs). Drivers must complete a DVIR whenever they discover or receive a report of a defect that could affect safe operation or cause a breakdown. The carrier must certify that any listed defect has been repaired before dispatching the vehicle again, and must retain these reports for three months.
- Preventative Maintenance Records. Carriers must maintain records showing a preventative maintenance schedule for all regulated equipment, along with documentation of all maintenance performed.
Brake failures, tire blowouts, lighting defects, and steering malfunctions all point back to these records. When a truck's mechanical condition contributed to a crash, the maintenance file tells the story. Missing records, expired inspections, or a pattern of deferred repairs can establish that the carrier knew about a safety problem and failed to fix it.
What This Means for Your Case
Truck accident litigation is built on regulatory violations. Every rule described above creates a standard of care that carriers and drivers must meet. When they fall short and someone gets hurt, the violation itself becomes evidence of negligence.
A truck accident attorney who understands FMCSA regulations will move quickly to:
- Preserve ELD data before the six-month retention period expires
- Subpoena the carrier's Drug and Alcohol Clearinghouse query records
- Obtain the vehicle's full maintenance file including DVIRs and annual inspection reports
- Request the driver's qualification file to confirm proper licensing and training
These records often reveal a pattern. A carrier that cuts corners on drug testing may also defer brake maintenance. A driver who routinely pushes past HOS limits may have prior violations documented in the Clearinghouse. Each piece of evidence builds the full picture of negligence.
If you or a loved one has been injured in a truck accident in Lubbock or anywhere in Texas, the investigation starts with these federal records. Contact our office at 832-250-4888 for a free consultation. We know what to look for, and we know how to get it before the evidence disappears.
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