Title 49 › SUBTITLE V — RAIL PROGRAMS › PART A — SAFETY › CHAPTER 211 — HOURS OF SERVICE › § 21104
Railroads may not let signal workers be on duty more than 12 consecutive hours. They also may not let them work unless the worker has had at least 10 consecutive hours off during the prior 24 hours. Time on duty starts when the worker reports for work and ends when they are finally released. Time spent doing other railroad work that day counts as duty. Time spent riding an ontrack vehicle counts as duty. Time spent returning from a trouble call or traveling from a remote worksite to headquarters or home is treated as neither duty nor off-duty in some situations. A planned meal or break of 30 to 60 minutes counts as off-duty but does not break the worker’s continuous service; a break longer than one hour does break continuity. If there is an emergency that affects the signal system, a worker may be kept on or called in for up to 4 extra hours in any 24-hour period, but not for routine work. During the required 10-hour rest period, the employer must not contact the worker in ways that would reasonably disturb their rest, except to tell them about an emergency. The rules here are the only ones that control signal workers’ hours; other federal hours rules do not apply.
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Legislative History
Reference
Citation
49 U.S.C. § 21104
Title 49, Transportation
Last Updated
Sep 22, 2026
Release point: 119-110