How ELDs Work
Electronic logging devices automatically connect to a truck's engine computer system. When the engine starts, the ELD begins recording that the driver is on duty and potentially driving. The device uses GPS technology to track the vehicle's location and movement. Drivers can manually input their status on a touchscreen or mobile app when they are not driving but still on duty, such as during loading or unloading cargo.
What Information They Collect
ELDs record four main categories of driver activity: off-duty time, sleeper berth time, driving time, and on-duty non-driving time. The devices timestamp all entries and store detailed records that include the driver's name, vehicle identification, miles driven, and location data. This information is saved electronically and can be transmitted to company managers or government inspectors.
Safety and Regulation Benefits
ELDs help enforce federal rules that limit how many hours a driver can work without rest. These rules exist to prevent tired drivers from causing accidents. The devices make it harder for drivers or companies to falsify records since the system automatically logs data from the engine. Government officials can quickly check ELD records during traffic stops or inspections to ensure compliance.
Legal Requirements
The Federal Motor Carrier Safety Administration requires most commercial truck drivers to use ELDs instead of paper logbooks. The rule applies to drivers who are required to maintain records of duty status, which includes most long-distance truckers. Some exceptions exist for certain vehicle types and short-haul operations. All ELDs must be certified and approved by the government before companies can use them.
Advantages Over Paper Logs
Electronic logging devices are more accurate than handwritten paper logs because they automatically record data from the engine. They reduce paperwork and administrative work for drivers and companies. Managers can access real-time information about their fleet's location and status. ELDs also prevent intentional record falsification, which improves safety on roadways. 
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