Driver Hours Regulation refers to the rules that govern the amount of time commercial drivers can operate their vehicles. These regulations are designed to ensure safety on the roads by preventing driver fatigue. They typically specify maximum driving hours, required rest breaks, and off-duty time. These regulations vary by country but generally aim to balance work and rest for drivers. For example, in the United States, the Federal Motor Carrier Safety Administration (FMCSA) enforces these rules, which help protect both drivers and the public by reducing the risk of accidents caused by tired drivers.