HOS Night Duty Study

The HOS Night Duty Study, sponsored by the ASLRRA, is approved and will be implemented under the jurisdiction of a formal waiver by the FRA. The study is designed to demonstrate safe operations and effective management of fatigue for extended night duty during the hours of midnight to 6 a.m. The study is a pilot and will involve careful monitoring and measurement of railroad employees' fatigue levels and the utilization of fatigue countermeasures during a three-month period while the study period is undertaken.