Fatigue Risk in NDIS Rostering — Duty of Care, Legal Obligations and Prevention

Why Fatigue Is a Serious Risk in Care

Research consistently links fatigue to increased error rates in health and care settings. For support workers, fatigue-related errors can include:

• Medication administration errors — wrong dose, wrong time, wrong person
• Falls during transfers due to reduced attention or strength
• Missed observations — failing to notice a participant's deteriorating health
• Behaviour incidents due to reduced capacity to apply de-escalation strategies
• Vehicle accidents when workers drive between shifts

These are not hypothetical risks. The Fair Work Commission and WorkCover bodies in multiple states have found employers liable for incidents where fatigued workers caused harm.

SCHADS Award Minimum Rest Requirements

The SCHADS Award sets minimum rest periods between shifts. The key provision for most disability support workers is a minimum break of 10 hours between the end of one shift and the start of the next. Rostering a worker to start a shift before this minimum rest period has elapsed is a breach of the Award.

This means a worker who finishes a night shift at 7am cannot lawfully start an AM shift at 7am the same morning — they need at least 10 hours before starting again.

Beyond the Award Minimum — Duty of Care

Complying with the Award minimum does not fully discharge your duty of care. Work health and safety legislation in all states and territories requires employers to take all reasonably practicable steps to eliminate or minimise risks to worker health and safety — including fatigue.

A 10-hour break is the minimum, not the target. A worker who does a 12-hour night shift followed by 10 hours off and then another 10-hour shift is technically compliant with the Award but may still be dangerously fatigued — particularly if they have care responsibilities at home during that break period.

Patterns That Create Fatigue Risk

When reviewing rosters for fatigue risk, look for these patterns:

• Late-to-early transitions: A shift finishing after 10pm followed by a shift starting before 8am the next morning (even with a 10-hour gap) leaves little time for quality sleep
• Consecutive night shifts: Multiple night shifts in a row disrupt the circadian rhythm and accumulate sleep debt
• Long weekly hours: Workers exceeding 50+ hours per week consistently are accumulating fatigue debt even if individual shifts comply with rest requirements
• Seven-day stretches: Working seven or more consecutive days without a full day off creates significant fatigue accumulation
• Shift variety: Workers alternating between night, AM, and PM shifts within the same week have disrupted sleep patterns even if total hours are reasonable

How to Identify High-Risk Rosters

A systematic approach to fatigue risk assessment involves scoring each worker's roster for the week against the risk factors above. A scoring system might look like:

• +1 point for each day over 5 consecutive
• +2 points for each late-to-early transition
• +1 point for each night shift
• +2 points for total weekly hours above 48

Workers scoring above a threshold should not be assigned additional shifts without explicit manager review. This converts an invisible risk into a visible one that can be managed before harm occurs.

Practical Fatigue Management Strategies

• Set a maximum weekly hours cap per worker in your scheduling policy — not just the Award minimum
• Avoid late-to-early transitions wherever possible when building rosters
• Rotate night shifts across the casual pool rather than loading them onto the same workers
• Train managers to check a worker's recent hours before assigning an additional shift
• Create a standby or relief roster so fatigue-managed workers can be replaced without leaving shifts uncovered
• Take worker-reported fatigue seriously — a worker who says they are too tired to work safely should not be pressured into a shift