Check entry into an agreed zone during an agreed time.

Check whether required equipment is present in a work area.

A signal for the responsible person when a person and moving equipment are close in view.

Check agreed occupancy or queue conditions in retail and service spaces.

Check activity in a closed or unstaffed space by a time rule.

Doors, lobbies and perimeters connected to one response path.

Zones, PPE and equipment proximity fitted to the operation.

A clear path from one production event to human review.