How many hours can a truck driver drive? What do you need to know?

by | Apr 24, 2024

How Many Hours a Day Can a Trucker Drive?

A truck driver’s life is full of long hours on the road and tough schedules, and he is committed to compliance with the various Hours of Service regulations (HOS). These rules are vital as they ensure that truck drivers rest long enough between shifts to avert cases of driving under fatigue. This paper provides a detailed overview of how long a truck driver can drive when tired, typical hours, special cases, and compliance measures.

Exploring the HOS Regulations for Truck Drivers

The hours of service form one of the very important regulations in the commercial vehicle and trucking industry. This specifies the maximum number of hours on duty to include the driving hours, and then allows time off for rest for the driver to be alert and remain awake. Therefore, the HOS regulations apply to every carrier and driver of a commercial motor vehicle.

FMCSA modified four large parts of the HOS rules in such a manner that it can better serve the drivers and inculcate safety at the helm in 2020. These rules were finalized on September 29, 2020, to find a fine balance between safety concerns and the operational needs of truck drivers and their companies.

Breaking Down the Standard Driving Limits

The truck driver must understand the standard driving limits given in the Hours of Service (HOS) regulations to manage fatigue and ensure safety on countryside roads. Let’s examine each of these regulations.

14-Hour Window

The HOS rules give a driver a total of 14 hours to drive on a given day. This window starts after the driver starts doing any type of work. When a driver has exhausted the 14-hour work window, the driver is supposed to be off duty for 10 hours continuously. This is crucial in preventing incidents related to fatigue that cause either death or serious bodily injuries.

11-Hour Driving Limit

Thus, in 14 hours, a truck driver generally drives a maximum of 10 hours but not more than 11 hours. This limit is set to give drivers time to rest between shifts so that they do not suffer from the stress involved in long-haul driving. The 11 hours also limit the possibility of accidents due to fatigue.

30-Minute Resting

Truck drivers have been allowed to take a 30-minute rest after every 8 hours of duty to prevent further fatigue. This break shall be off-duty or in a sleeper berth to allow drivers to increase their alertness and thus keep high safety standards in their performance during long trip times at night.

60/70-Hour Duty Period

Drivers shall not operate a CMV after 60 hours on duty in 7 consecutive days or 70 hours on duty in 8 consecutive days. A driver may restart 7/8 days after taking at least 34 consecutive hours off duty. This rule requires two periods off between 1 and 5 a.m. This ensures drivers will be well rested and able to recover from the road.

The 34-hour restart

The rule also allows a driver to reset his 60-hour or 70-hour clock to zero by taking at least 34 consecutive hours off-duty or in the sleeper berth. Time spent under this clause does, however, begin to count on the restart period, hence helping to avoid cumulative fatigue effects from a long week on the road. This helps to keep the drivers’ health in proper condition and general road safety.

Special Circumstances and Exceptions

The Hours of Service (HOS) regulations include specific rules and exceptions for property-carrying drivers, emphasizing the importance of understanding these for compliance. However, the rules accommodate certain flexibility in the conditions and exceptions in the Hours of Service (HOS) regulations for trucks. These, in a way, are designed exceptions so that the unpredictability feature in the truck driving schedule works without necessarily jeopardizing the prime aim of safety.

Adverse Driving Conditions

Motor carriers and drivers will likely want to consider these flexibilities in HOS regulations if drivers face unforeseen adverse driving conditions, such as snow, ice, fog, or unexpectedly heavy traffic. This exception allows drivers to extend the driving window for two more hours.

This essentially means that when the driver is approaching the 11th hour of his full driving window but under these adverse driving conditions, he can still drive for another two hours to ensure he finds a safe place to stop. This exception is crucial for safety measures and to prevent the harsh conditions that truck drivers and other road users might be exposed to. It is important to note that the hours spent on duty in the 14-hour window must be at most 16 hours if this exception is used.

The Short-Haul Exception

The short-haul exception is designed for drivers who operate within a smaller, more localized area. Truck drivers who qualify for this exception typically operate within a 150-mile radius of their starting location and return to the same location at the same period, counting the end of the off-duty period each day. Drivers under this exemption are not required to maintain a detailed log of their driving times and are exempt from the 30-minute break rule provided their duty period does not exceed 12 hours. This exemption is beneficial for drivers who perform regular and predictable short trips, allowing for less stringent record-keeping while monitoring overall working hours.

Ensuring Compliance with HOS Rules

It is also a safety need, as the drivers’ hours require observation in relation to the Hours of Service (HOS) regulations. The rules help in avoiding accidents that may result from fatigue and also ensure that the drivers are alert and competent in their work. It’s essential to highlight that non-compliance increases the risk of accidents and can lead to bodily injury or serious bodily injury, affecting both truckers and other road users.

Importance of Logbooks

Logbooks, or, more recently, Electronic Logging Devices (ELD), are essential tools for tracking and recording the hours that drivers spend on the road, on duty, and at rest. These logs are critical for compliance with HOS regulations. They help verify that drivers are adhering to their designated driving windows, 10 hours off duty, and rest periods, which is vital for safety.

ELDs automatically record driving time and monitor engine hours, vehicle movement, miles driven, and location information. This automation helps reduce errors and data falsification, ensuring that records are accurate and enforcement of service regulations is straightforward. For truck drivers and companies, maintaining up-to-date logbooks helps avoid legal penalties and keeps roads safer.

Planning for Mandated Breaks

Strategic planning for mandated breaks is essential for compliance with HOS rules. Companies and drivers must work together to develop schedules for adequate rest periods. This involves understanding the timing of breaks during shifts, particularly the 30-minute break required after eight to 10 consecutive hours of the 14th consecutive hour of driving. Effective planning ensures compliance, helps improve driver alertness, and reduces the risk of fatigue. Drivers and dispatchers should regularly review routes and schedules to adjust for any delays or issues affecting compliance with break periods.

The Role of Rest Periods and Sleeper Berths

Rest periods and sleeper berths are some of the most basic units of HOS rules meant to give drivers enough off-duty time to alleviate the stresses that come with long-haul driving. More specifically, the sleeper berth provision has significance in that it stipulates how drivers can split the mandatory 10 off-duty period, one that must be at least seven consecutive hours in the sleeper berth, and the total off-duty time must meet some specific requirements for sleeper berth pairings.

Sleeper berths on vehicles, as well as compartments in the truck where drivers can sleep, make it possible for off-duty time to be broken up. The current split sleeper berth rule allows drivers to combine sleeper berth pairings to split their required 10 hours of off-duty time into two periods, provided one of the periods is at least seven consecutive hours in the sleeper berth.

Such a sleeper berth combination could allow the driver to meet the HOS regulations by combining off-duty periods that are spent in the sleeper berth, which must sum to a prescriptive minimum duration.

 This flexibility helps drivers manage their rest more effectively, particularly during long trips, without breaching HOS regulations.

Impact of Non-Driving Duties on HOS

Non-driving duties significantly impact HOS compliance. Activities such as loading and unloading cargo, vehicle maintenance, and completing paperwork are considered on-duty time. These nondriving period hours can quickly accumulate and reduce the maximum time available for driving within the regulatory limits. Drivers and employers must carefully manage these non-driving hours to ensure they do not infringe on the required rest periods and driving windows mandated by HOS rules.

Navigating State vs. Federal HOS Regulations

Navigating the differences between state and federal HOS regulations can become complex. Although the state and federal HOS regulations apply to the entire nation, states may have additional rules for commercial driving activities in intrastate issues. Drivers and transportation companies must know and understand both regulations to stay compliant.

This may involve putting the driver and administrative personnel through additional training with regular reviews for updates under federal and state regulations. It is very important to know such areas to maintain operational legality and evade heavy punitive measures.

Prudent record-keeping, careful planning of strategic breaks, the role of rest periods in carrying out the role of a driver, and understanding the implications for non-driving duties are all important means to adhere to the HOS regulations, which ensure the safety and well-being of the driver and the general traveling public.


Therefore, it is important to understand how many hours a truck driver can drive for safety on the roads. The HOS regulations are set to avoid fatigue, and under them, truckers, drivers, and generally any other user of the road is safe. This may entail the limit of 11 hours of driving, using a 34-hour restart, and proper planning to control the driving hours. Truck drivers form an integral part of the economy, and their health and safety are important for all road users.

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