Summary of the Evolution of the “All Hands” Signal
In 2020 the All Hands assignment of 4 engines, 2 ladders + FAST ladder, 2 BC, DC, Rescue, Squad, and RAC replaced the then lesser “10-75” response. The assignments for the two signals became identical.
The 2024 Safety-driven policy change to the All Hands (7-5) assignment increases the engine and ladder assignment and sets forth additional guidelines:
5 Engines, 4 Ladders (4th is FAST) 2 BC, DC, Rescue, Squad, RAC. The 5th Engine and 4th Ladder are not included in 10-76 or 10-77 signals
One additional engine may be special called; any further units require a higher alarm —however, one more engine may be special called for Overhaul Relief and one for CFR.
When Probably Will Hold, any additional units assigned will be the nearest available.
When Probably Will Hold or Under Control, additional engines may be special called without transmission of a higher alarm.