A new rule that limits the number of hours truckers can drive takes effect July 1st – but that’s not stopping the debate over it.

Under the Federal Motor Carrier Safety Administration (FMCSA) hours-of-service rule, drivers will be able to drive 12 fewer hours per week and will be required to take regular 34-hour rest periods that include pre-dawn hours of two straight days, under the rule. The regulation will be enforced by random inspections.