When did the Federal Motor Carrier Safety Administration change the rules governing Hours of Service?

The Federal Motor Carrier Safety Administration (FMCSA) made significant revisions to the Hours of Service (HOS) regulations on December 22, 2011. These changes were aimed at enhancing safety by reducing driver fatigue and ensuring that commercial motor vehicle operators had adequate rest. The revised rules included adjustments to the maximum driving hours and mandatory rest breaks, reflecting extensive research and feedback on the impacts of driver fatigue on road safety.

The implementation date for these changes was critical as it was part of a broader effort by the FMCSA to improve overall highway safety and manage driver health. The correct choice accurately reflects the date when these important regulatory changes were formally established, which allows us to understand the timeline and developments in safety regulations for commercial drivers.