Guidance on prevention and mitigation of lost bell emergencies

  • Recommended Practice
  • Revision 1 - January 2026

 

This document provides IMCA's detailed guidance on the prevention and mitigation of lost diving bell emergencies.

Contents

  • Introduction

  • Aims

  • Application

  • The prevention of lost bell diving incidents

  • The mitigation of lost or stricken bell diving incidents

  • References

  • Appendix A – Bell mounted acoustic transponder specification

  • Appendix B – Diver operated interrogator / receiver

  • Appendix C – Bell emergency communication

  • Appendix D – Stricken bell – Diver actions (example)

  • Appendix E – CO2 scrubbing – Example scrubbing capabilities


Revision

  • Rev. 1 - January 2026
    Strategic review and validation of Emergency Lung Powered Scrubber durations
  • Rev. 0.1 - May 2024
    Page 2, bookmarking and references updated; no change to content
  • Rev. - May 2023
    Initial publication