in the current hours of service requirements, coupled with additional federal regulations, has worsened the truck parking crisis. (11) Federal hours of service requirements should improve highway safety for all users. 3. Flexibility in hours of service requirements for drivers of certain property-carrying vehicles (a) In general Not later than 1 year after the date of enactment of this Act, the Secretary of Transportation shall issue or revise regulations to ensure that— (1) a covered driver may suspend an on-duty period of the driver by an amount of time that is equal to a single off-duty rest break carried out by the driver during such on-duty period, provided the suspension— (A) does not exceed 3 hours