- Applies
- when someone asks to exchange a shift
- Enforcement
- Hard: never broken
- Who sets it
- Fixed in the product
- Family
- Rest and recovery
- Roster style
- published baseline (shift exchange)
verifiedCompiled from the product source on 12 September 2026
Rule catalogue · Rest and recovery
A swap cannot cut anybody below minimum rest
Breaking it accepts an exchange leaving one of the two people with less rest before their next duty than the rules allow.
What rest and recovery rules protect
Fatigue is cumulative and it does not respect a roster's tidiness. These rules hold the gaps open: the minimum interval between the end of one duty and the start of the next, the longer recovery a night duty earns, and the whole days off that have to survive contact with a staffing shortfall. They are the rules most often quietly eroded when a unit is short of people, which is exactly why a system should enforce them rather than leaving them to the planner's conscience at four in the afternoon.
Other rules in this family
- Off-duty periods are long enough to count as rest
- Days off come in runs, not scattered singles
- A long run of hours earns its rest afterwards
- A long run of duties earns its rest afterwards
- There is a minimum rest gap between two duties
- The run of duties before a duty stays under a limit
- Working days in a row stay under the unit's limit
- Days on the roster in a row stay under the limit