The Supervision Plan System has been implemented since December 1997 with the issuance of the Technical  Memorandum for Supervision Plans (the “Technical Memorandum”) and the Draft Code of Practice for Site Safety Supervision. The Draft Code was refined in November 2000 with some clarification on the principles and requirements and some simplification on the procedures.

Pursuant to the enactment of the Buildings (Amendment) Ordinance 2004, the second edition of the Technical Memorandum and Code of Practice for Site Supervision came into effect on 31 December 2005. The revisions covered inclusion of the requirements for quality supervision and the qualified supervision requirements for geotechnical works, deletion of the details on assessment of degree of complexity and class of supervision, and updating of the qualification and experience requirements for TCP and the additional supervision requirements for critical stages of building works.

With the introduction of the minor works control system and a new register of minor works contractors under the Buildings (Amendment) Ordinance 2008, a new regime to control the carrying out of building works that are designated as minor works is established. This revision covers supervision requirement for the carrying out of minor works and other minor refinements of the Supervision Plan System.

This Code of Practice gives guidance to authorized persons, registered structural engineers, registered geotechnical engineers, registered contractors and other personnel in the building industry for the preparation of supervision plans, carrying out their respective supervision duties and other site supervision matters.