Guidance Manual for Tanker Structures

This consolidated edition combines in one guidance manual the various sources of information necessary for assessing the condition of the ballast tanks, cargo tanks and structure of tankers in service.

While the original manual mainly addressed the conventional single hull tanker, this revision includes IACS Recommendation No. 72: Confined Space Safe Practice Rev.3 Dec 2018 and IACS Unified Requirements (UR) Survey and Certification: Z10.4 Hull Surveys of Double Hull Oil Tankers (Rev.18 Feb 2023), where changes introduced in Rev.18 are to be uniformly applied by IACS Societies for surveys commenced on or after 1 July 2024. Phase-Out of Single Hull Tankers.