Here is the latest update to Approved Document B (Volumes 1 and 2). The changes come into effect on 26th November 2020 in England, they appertain to blocks of flats/apartments and they focus on a reduction in the ‘trigger’ height of the building for sprinklers (18m down to 11m) and also wayfinding signage for firefighters.
Amendments to the Approved Documents (Volume 1 & 2)