This instrument is part of a number of Regulations which implement Part 3 of the Building Safety Act 2022. That Act inserts section 91ZA into the Building Act 1984. Section 91ZA, which is to have effect from 1st October 2023, provides for the regulator to be the building control authority in relation to any higher-risk building in England and any proposed higher-risk building. The Act also introduces a new regulatory regime for the building control profession under which approved inspectors will be replaced by registered building control approvers.