http://www.legislation.gov.uk/asc/2026/5/section/128Building Safety (Wales) Act 2026enStatute Law Database2026-06-22Expert Participation2026-04-28 PART 5SUPPLEMENTARY AND GENERALExercise of functions by building safety authorities and fire safety authoritiesCo-operation between building safety authorities and fire safety authorities 128 1 A building safety authority and a fire safety authority to which this section applies must so far as possible co-operate in the exercise of their relevant functions. 2 This section applies to a building safety authority and a fire safety authority that have relevant functions in relation to the same regulated building or regulated buildings. 3 Guidance under section 127 may include guidance about how a building safety authority and a fire safety authority are to comply with this section. S. 128 not in force at Royal Assent, see s. 138(2)