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The 2003 hours-of-service (HOS)
HOS rule shortened the driving window to 14 consecutive hours and increased the off- duty period from 8 to 10 hours, but increased driving time from 10 to 11 hours and allowed drivers to restart their duty time calculations whenever they took at least 34 consecutive hours off. -
14-hour rule goes into effect
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FMCSA Revision of HOS
FMCSA published a notice of proposed rulemaking (NPRM) to revise the HOS rules (75 FR 82170). -
Virginia Tech Transportation Institute (VTTI) completed a naturalistic driving study
A study of actual over-the-road drivers and operations, that examined the activities performed in the 14-hour workday and investigated the relationship between safety-critical events (SCEs) (such as driver errors and lane tracking deviations) and driving hours, work hours, and breaks (referenced here as Blanco) -
FMCSA Reopens Revisions
FMCSA reopened the comment period to accept comments on four studies related to the HOS proposal (76 FR 26681). -
FMCSA announces new federal regulations designed to improve safety
The U.S. Department of Transportation Carrier Safety Administration (FMSCA) starts viewing driver fatigue as serious danger. -
The Final Rule
FMCSA revises the hours of service (HOS) regulations to limit the use of the 34-hour restart provision to once every 168 hours and to require that anyone using the 34-hour restart provision have as part of the restart two periods that include 1 a.m. to 5 a.m -
FMCSA suspends enforcements of driver's 60 or 70 hour limit.
FMCSA suspends enforcement of certain sections of the Agency’s Hours of Service (HOS) rules as required by the Consolidated and Further Continuing Appropriations Act, 2015, enacted December 16, 2014. Specifically, FMCSA suspends the requirements regarding the restart of a driver’s 60- or 70-hour limit that drivers were required to comply with beginning July 1, 2013. -
The Consolidated and Further Continuing Appropriations Act of 2015
Enforcement of requirements for use of the 34-hour restart