The goal of this rulemaking is to reduce excessively long work hours that increase both the risk of fatigue-related crashes and long-term health problems for drivers. A rule cannot ensure that drivers will be rested, but it can ensure that they have enough time off to obtain adequate rest on a daily and weekly basis. The objective of this rule, therefore, is to reduce both acute and chronic fatigue by limiting the maximum number of hours per day and week that the drivers can work. The rule reduces a driver’s average maximum allowable hours of work per week from 82 hours to 70 hours, a 15% reduction. The 15% reduction in the average maximum allowable hours of work based on the new rule results from the restrictions on the use of the restart period.