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How Fatigue and Hours-of-Service Violations Cause Truck Accidents

Nov 6, 2025 | Truck Accidents

Truck accidents are among the most devastating types of crashes on the road, often resulting in severe injuries and fatalities. When large commercial trucks collide with smaller passenger vehicles, the consequences can be catastrophic. A significant cause of truck accidents that often goes overlooked is driver fatigue, particularly when truck drivers violate hours-of-service (HOS) regulations. These regulations are designed to limit the amount of time truck drivers spend behind the wheel to prevent accidents caused by exhaustion.

If you’ve been involved in a truck accident, it’s important to understand how fatigue and HOS violations play a role in these accidents. 

What Are Hours-of-Service Regulations?

Hours-of-service regulations are federal guidelines set by the Federal Motor Carrier Safety Administration (FMCSA) to ensure that commercial truck drivers do not drive for too long without taking adequate rest breaks. These regulations are designed to prevent fatigue-related accidents by limiting the number of driving hours and mandating rest periods.

The FMCSA requires that truck drivers:

  • Drive no more than 11 hours within a 14-hour period.

  • Take a 30-minute break after driving for 8 hours.

  • Take at least 10 hours of rest after a work shift before driving again.

  • Work no more than 60 hours in a 7-day period or 70 hours in an 8-day period.

These guidelines are in place to help ensure that truck drivers are well-rested and alert while driving. However, when these regulations are violated, the risk of fatigue-related truck accidents increases significantly.

How Fatigue Affects Truck Drivers and Leads to Accidents

Fatigue is one of the most dangerous risks associated with long-haul trucking. Truck drivers are often under pressure to meet tight delivery schedules, leading some to ignore the required rest breaks outlined in HOS regulations. However, fatigue impairs a driver’s ability to react quickly, make sound decisions, and stay focused on the road, significantly increasing the likelihood of an accident.

Here are some of the ways fatigue can impact truck drivers and contribute to accidents:

1. Reduced Reaction Time

When a truck driver is fatigued, their reaction time is significantly slower. In an emergency situation, a tired driver may not be able to brake in time to avoid a collision or respond quickly enough to other road hazards. This delayed reaction time can have deadly consequences, especially when driving a large vehicle like a commercial truck.

2. Decreased Alertness and Focus

Fatigue reduces a driver’s ability to stay alert and focused, which is critical when navigating highways and busy streets. A fatigued driver may fail to notice road signs, other vehicles, or changes in traffic patterns, increasing the risk of an accident. They may also experience “highway hypnosis,” a condition where a driver becomes zoned out or loses focus while driving long distances.

3. Poor Decision-Making

Fatigue impairs cognitive function, making it difficult for drivers to make sound decisions. A truck driver who is too tired may misjudge distances, fail to adjust speed for traffic conditions, or ignore safety protocols. In some cases, fatigued drivers may even fall asleep at the wheel, leading to catastrophic accidents.

4. Increased Risk of Drowsy Driving

Drowsy driving is a serious safety concern for truck drivers. When drivers violate HOS regulations and push beyond their limits, they are more likely to drive while overly tired or even asleep. Studies show that drowsy driving can be just as dangerous as drunk driving, leading to fatal accidents.

Legal Implications of Fatigue and Hours-of-Service Violations

When a truck accident occurs due to driver fatigue or an hours-of-service violation, the driver and their employer may be held liable. If the truck driver’s fatigue contributed to the crash, the trucking company may also face legal consequences for failing to enforce proper safety protocols.

A truck accident attorney can help you pursue a truck accident claim in these situations by:

  • Investigating the Driver’s Logs: A key part of proving driver fatigue is accessing the driver’s logbook to determine if they violated HOS regulations. Your attorney can help obtain and analyze this data to determine whether the driver’s hours were within legal limits.

  • Proving Negligence: If the trucking company was negligent in enforcing HOS regulations, they can be held accountable for the crash. Your personal injury attorney will work to prove that the company failed to properly monitor the driver’s hours or pressured them to drive longer than allowed.

  • Pursuing Compensation: Truck accidents often result in serious injuries and significant financial losses. Your attorney will help you seek compensation for medical bills, lost wages, pain and suffering, and property damage.

How a Truck Accident Attorney Can Help

If you’ve been injured in a truck accident caused by fatigue or an hours-of-service violation, a truck accident attorney can help protect your rights and navigate the legal process. Here’s how an attorney can assist:

1. Investigating the Accident

Your attorney will thoroughly investigate the circumstances surrounding the truck accident, including reviewing the driver’s hours-of-service logs, maintenance records, and other relevant documents. This investigation will help determine if the driver or the trucking company was at fault for the accident.

2. Negotiating with Insurance Companies

Truck accidents often involve multiple parties, including the trucking company’s insurance provider. Your personal injury attorney will handle all negotiations with insurance companies to ensure that you receive fair compensation for your injuries and losses.

3. Filing a Lawsuit if Necessary

If a settlement cannot be reached, your attorney will be prepared to take the case to court. They will advocate on your behalf, presenting evidence of negligence and working to secure the compensation you deserve.

Contact a Truck Accident Attorney Today

If you’ve been injured in a truck accident caused by fatigue or an hours-of-service violation, it’s important to consult with an experienced truck accident attorney as soon as possible. At Folger Law Firm, we are committed to helping victims of truck accidents seek justice and compensation for their injuries.

Contact Folger Law Firm today to discuss your case and learn how we can help you with your truck accident claim.