1 Scope
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.891 – Guidelines for the On-Board Use and Application of Computers – (Adopted on 21 December 1998) - Annex - Guidelines for the On-Board Use and Application of Computers - 1 Scope

1 Scope

  1.1 These Guidelines are applicable where computer-based systems are used to perform essential functions, such as:

  • a)

    • propulsion, steering and manoeuvring
    • navigation and communication
    • cargo loading, discharging and control
    • safety of passengers and crew (e.g. fire safety systems and general alarm); and
  • b) essential calculations, such as ship's stability and loading.

  1.2 The Guidelines are not applicable to equipment or systems for which relevant specific Performance Standards of the Organization exist.

  1.3 The Guidelines should also be applied to non-essential functions where loss of control could result in serious damage to the ship or its machinery, or serious injury to personnel, e.g. explosion of domestic water boilers.


Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.