Technical Bulletins

The Technical Bulletins have now been withdrawn.

  • Technical Bulletin 1: Certification of Contractor Designed Details has been withdrawn and replaced with information in Guidance Note 12: Building Risk Group Matrix and in Certification Performance Criteria Guidance B1.4
  • Technical Bulletin 2: Guidelines for Checking the Structural Design of Buildings has been withdrawn and replaced by Guidance Note 11 with the same title 
  • Technical Bulletins
    • 3: Certifying the Design of Timber Framed Structures
    • 4: Certifying the Structural Design of Conservatories
    • 5: Certifying the Structural Design of Protective Barriers
    • 6: Certifying the Design of Glazing Systems
  • were withdrawn 01/04/2022 following the publication of the new Certification Practice Notes.