Find out more about the types of IMCA documents and our definitions

    • Glossary
    • Introduction
    • Background
    • General Principles for Lifting Equipment
    • Selection of Equipment
    • Immersion Policy
    • Information and Data Requirements
    • Transportation, Storage and Control
    • Use of Chain Lever Hoists Underwater
    • Equipment User Competence
    Date: Reason: Revision:
    Date:May 2024 Reason:Page 2 updated, glossary added; no change to content Revision:Rev. 3.1
    Date:June 2023 Reason:Document restructured and now includes a policy for single- and multi-immersion. Added chain lever hoist criteria specifically designed for multiple immersion. Revision:Rev. 3
    Date:June 2017 Reason:Minor editorial changes throughout. Changes to sections 4.1, 4.6, 7.3 on length of time the lever hoist is in service, and section 7.4 Revision:Rev. 2
    Date:February 2008 Reason:To reflect on experience gained by the industry in using the guidance and to incorporate lessons learnt during investigations into lever hoist incidents over the past five years. It contains a new section 7 on the use of chain lever hoists underwater Revision:Rev. 1
    Date:June 2002 Reason:Initial publication Revision:Rev.