Site Investigations

This document provides technical information previously contained in the Fourth Edition of the Health and Safety Executive's "Offshore Installations: Guidance on Design, Construction and Certification" (1990 edition plus amendments).

The "Guidance" was originally published in support of the certification regime under SI289, the Offshore Installations (Construction and Survey) Regulations 1974.

However, SI289 was revoked by the Offshore Installations (Design and Construction, etc) Regulations, 1996, which also introduced the verification provisions into the Offshore Installations (Safety Case) Regulations, 1992.

The "Guidance" was formally withdrawn in its entirety on 30 June 1998 (see HSE OSD Operations Notice 27).