Certified employers schedule rest, water, and relief coverage into long shifts because fatigue turns a minor task into a public hazard. Supervisors must post the relief contact before a worker enters a controlled service zone.

Employees who need a health review may request it without publishing a private explanation to a work crew. The relevant clinic and labor desk coordinate the return instruction.

The standard requires continuity. Workers must be able to finish a shift without risking injury from fatigue.