5.5 Ship's Speed Indicating System
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.586(14) – Revised Guidelines and Specifications for Oil Discharge Monitoring and Control Systems for Oil Tankers – (Adopted on 20 November 1985)Amended by Resolution MEPC.24(22)See also Resolution MEPC.108(49) - Annex - Revised Guidelines and Specifications for Oil Discharge Monitoring and Control Systems for Oil Tankers - 5 Technical Specifications - 5.5 Ship's Speed Indicating System

5.5 Ship's Speed Indicating System

  5.5.1 The automatic speed signal required for a category A monitoring system should be obtained from the ship's speed indicating devicefootnoteby means of a repeater signal. The speed information used may be either speed over the ground or speed through the water, depending upon the speed measuring equipment installed on board.

  5.5.2 In oil tankers fitted with a category B monitoring system, the ship's speed may be inserted manually into the computing unit. Such data should be obtained from the speed log or from an equivalent source.


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.