These rules govern urgency tiers (Risk Buffer Days replaces hard-coded 30/90-day thresholds) and delivery-window status per apparatus type.

Type Build Window (mo) Risk Buffer (days) Commission (mo) Notes Urgency Preview Updated
Aerial
≤60d ≤180d >180d
2026-04-02
Ambulance
≤30d ≤90d >90d
2026-04-02
Brush
≤30d ≤90d >90d
2026-04-02
Command
≤45d ≤135d >135d
2026-04-02
Custom
≤60d ≤180d >180d
2026-04-02
Engine
≤45d ≤135d >135d
2026-04-02
Rescue
≤45d ≤135d >135d
2026-04-02
Tanker
≤45d ≤135d >135d
2026-04-02