Form 12 – Regulation 40B Notification —

The Building (Registered Building Control Approvers etc.) (England) Regulations 2024.

This form is used to confirm a declaration in accordance with the regulations below have or will take place:

Information about overheating regulation 40B.

  1. This regulation applies to building work in respect of a building where Part O of Schedule 1 applies where Part O of Schedule 1 imposes a requirement in relation to building work.
  2. The person carrying out the work must, not later than five days after the work has been completed, give sufficient information to the owner about the provision made in accordance with Part O so that the systems in place further to Part O can be operated in such a manner as to protect against overheating.

    Work Details
    • Note: This is your unique reference number, found on all letters of correspondence. Eg: BC-2025-0277

    Personnel Details
    Signature & Send

    Note: by submitting this form I confirm I have/will not later than five days after the work has been completed, give sufficient information to the owner about the provision made in accordance with Part O so that the systems in place further to Part O can be operated in such a manner as to protect against overheating.