Witherby Guidance Manual for Tanker Structures

Guidance Manual for Tanker Structures - Consolidated Edition 2020

This collates the information required for the assessment of ballast and cargo tank structures. Based on the experience and practices used by members of the Tanker Structure Co-operative Forum, it covers survey preparation and execution guidelines, maintenance guidelines and survey data analysis.

This edition also incorporates IACS Unified Requirement, UR Z Survey and Certification, IACS UR Z10.4 'Hull Surveys of Double Hull Oil Tankers' Rev.16 which will come into force on 1 July 2020.