Boston Truck Accident Attorney Dino M. Colucci Explains How the FMCSA 14-Hour Rule Affects Massachusetts Liability
BOSTON, MA – September 14, 2026 – Victims of commercial truck collisions in Massachusetts often face challenging questions about federal safety regulations, particularly the Federal Motor Carrier Safety Administration’s 14-hour on-duty rule. Boston truck accident attorney Dino M. Colucci of Colucci, Colucci & Marcus, P.C. (https://www.coluccilaw.com/blog/fmcsa-14-hour-on-duty-window-massachusetts-truck-liability/) has released guidance explaining how a violation of this rule under 49 CFR § 395.3 may support a fatigue-based liability claim following a serious crash.
According to Boston truck accident attorney Dino M. Colucci, breaking the federal 14-hour rule does not automatically establish that a trucking company caused a collision, but it can serve as strong evidence that a driver or carrier violated a federal safety regulation. “A violation shows the driver was on the clock longer than federal safety rules allow, but that evidence still has to be connected to how the collision actually happened,” Colucci explains. The firm investigates whether hours-of-service violations contributed to a crash and works to preserve critical records before they are lost.
Boston truck accident attorney Dino M. Colucci notes that under 49 CFR § 395.3, a property-carrying commercial driver may not operate a truck after the 14th consecutive hour following the start of a shift, which begins only after 10 consecutive hours off duty. The clock runs continuously, whether the driver is behind the wheel, waiting at a loading dock, or completing paperwork. Ordinary traffic, weather, and delivery delays do not pause the 14-hour window, though limited exceptions may apply for qualifying sleeper berth rest periods and certain adverse driving conditions.
Colucci points out that the 14-hour on-duty window is distinct from the separate 11-hour driving limit. Within the 14-hour period, a driver may spend no more than 11 hours actually operating the truck, a rule that targets the time behind the wheel when fatigue most directly affects reaction time and lane control. “A driver might stay under the 11-hour driving cap but still exceed the 14-hour on-duty limit because of long dock delays,” Colucci says. “Two separate violations can appear in the same case.”
Attorney Colucci observes that hours-of-service violations can result from delivery schedules, compensation structures, and operational demands. Drivers paid by the mile rather than by the hour may have a financial incentive to maximize driving time, and tight delivery windows set by carriers, freight brokers, and dispatchers can contribute to noncompliance. Federal regulations prohibit motor carriers from coercing drivers to violate hours-of-service rules, and a company’s scheduling practices, dispatch instructions, and compliance efforts may all become relevant when determining whether a carrier shares responsibility.
To establish liability in a Massachusetts truck accident, Colucci explains that a plaintiff must show the rule applied, that the driver or carrier violated it, and that the violation contributed to the crash and resulting injuries. Massachusetts courts may allow evidence of a regulatory violation to help establish that a driver breached the standard of care. Fatigue-related collisions often involve a truck drifting from its lane, rear-ending stopped traffic, or failing to brake in time.
The firm emphasizes that electronic logging device data is frequently the most important evidence in these cases, automatically recording driving time, engine hours, and duty status. “ELD data is the strongest proof of a 14-hour violation,” Colucci notes, “and dispatch logs, GPS data, fuel receipts, and toll records can either confirm it or expose falsified logs.” Cross-checking multiple sources often reveals contradictions that strengthen a claim.
Liability may extend beyond the driver, according to Colucci. Under the doctrine of vicarious liability, an employer may be responsible for the negligent acts of an employee acting within the scope of employment, and a trucking company may face direct liability if its hiring, supervision, training, or scheduling practices contributed to the violation. In some situations, brokers or shippers may also become part of the liability analysis.
Massachusetts law generally allows three years to file a personal injury lawsuit under Chapter 260, § 2A, and wrongful death claims under Chapter 229, § 2 follow the same three-year period measured from the date of death. However, federal regulations require carriers to retain certain ELD records for only six months under 49 CFR § 395.8(k)(1). Because of this short retention period, attorneys often send preservation letters requesting that ELD data, dispatch records, and black box information be maintained while a claim is investigated.
Recoverable damages in truck accident cases may include medical expenses, hospitalization, rehabilitation, future treatment, lost wages, reduced earning capacity, and pain and suffering. When a collision is fatal, eligible surviving family members may pursue a wrongful death claim under Massachusetts law.
For those injured in a collision involving a commercial truck, contacting an experienced Massachusetts truck accident attorney may help preserve time-sensitive electronic records and determine whether hours-of-service violations contributed to the crash.
About Colucci, Colucci & Marcus, P.C.:
Colucci, Colucci & Marcus, P.C. is a Milton, Massachusetts-based law firm focused on truck accidents, catastrophic injury, wrongful death, and other personal injury matters. Led by founding partner Dino M. Colucci, the firm represents injured clients across the Boston area and litigates in the Norfolk County and Suffolk County courts and the Boston Municipal Court on a contingency fee basis. For consultations, call (617) 958-3807.
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