SOLAS and IMO Requirements

Introduction and Legislation

Introduction and Legislation

In this lesson, you will learn about the international regulations requiring emergency towing systems and why such a system is important.

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Components of the System

Components of the System

In this lesson, you will learn about the main components of the emergency towing system and its strength requirements.

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Safe Use of the System

Safe Use of the System

In this lesson, you will learn about how to ensure safety during such operations.

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Step 2 of 34 minutes read

SOLAS and IMO Requirements

SOLAS and IMO Requirements.mp3

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SOLAS 1974 Chapter 2, regulation 3.4 requires all tankers of 20,000 tonnes deadweight and above, including oil, chemical and gas tankers, to be provided with an emergency towing arrangement at both ends of the ship. This requirement has been in force since 1st January 1996 for new vessels built after that date.

Existing Vessels
For existing vessels, the deadline was set at their first scheduled docking after 1st January 1996, but not later than 1st January 1999. These arrangements should be available at all times and capable of easy deployment, independent of a power supply. There should also be appropriate procedures for the safe operation of the system and onboard training given to personnel responsible for deploying it.
Built After 2010
For passenger vessels constructed after 2010 and all cargo vessels, there is no requirement to carry a dedicated emergency towing system. However, they should have procedures for emergency towing utilising existing ship equipment carried onboard. These procedures are provided inside an Emergency Towing Booklet found onboard.

Emergency Towing Booklet

The booklet will include the following: 

  • Drawings of the fore and aft decks showing possible emergency towing arrangements,
  • The inventory of equipment provided onboard for emergency towing,
  • Means and methods of communication, and
  • Procedures for conducting an emergency towing operation.

A minimum of three copies of the Emergency Towing Booklet should be kept onboard, and these should be located at the forecastle, one inside the cargo control room/ship’s office and one on the bridge.

As stated before, it is of utmost importance for all crew members to be familiar with the emergency towing booklet and its contents to ensure preparedness in the case of an emergency.

Photo: Jörgen Språng

IMO Guidelines

The IMO’s guidelines MSC 35 (63), adopted on 20th May 1994, require an emergency towing arrangement to be fitted to the forward and aft end of the tanker. The aft arrangement must be possible to rig in 15 minutes under harbour conditions, while the forward one has a permitted deployment time of 60 minutes. The arrangements must be kept simple, as the equipment may have to be employed in bad weather and complete darkness if the vessel is powerless.