Employer's Legal Obligations for Managing Workplace Fatigue

The Health and Safety in Employment Act 1992 requires employers to take all practicable steps to prevent harm from workplace hazards, including fatigue and the behaviour of fatigued workers.

Employer's legal obligations include:
providing information and training about fatigue management
identifying and assessing fatigue hazards
controlling fatigue hazards by eliminating or minimising them
where a significant fatigue hazard can only be minimised (rather than eliminated), monitoring employees' workloads and work hours, and (with their consent) monitoring their health in relation to that hazard
making employees aware of their responsibilities in minimising fatigue
ensuring employees participate in health and safety processes
responding to reports of fatigue, and report serious harm
acknowledging employees' right to refuse work that is likely to cause fatigue leading to a risk of serious harm
detecting fatigue-related impairment in employees .

Ref - Managing Shiftwork to Minimise Workplace Fatigue - A Guide for Employers

Nov 2007 - Download the full document here.