- Emergency Towing Arrangement is compulsory for all tankers of 20,000 DWT and above (Diagram for both forward and aft arrangement at the end).
- It should be provided at both forward and aft end.
- Emergency Towing Arrangement should be able to work without any power supply and should be accessible to the towing ship without needing to come too close.
- It should be ready for rapid deployment and at least one of the two should be pre-rigged.
- Should be of sufficient strength, taking into account all the forces acting upon it.
- Strength of the towing components should be as follows:
- At least 1000 kN for tankers of 20,000-50,000 DWT.
- At least 2000 kN for tankers of 50,000 DWT and above.
- Sufficient strength at all towing angles from Centre line to 90° (Port & Stbd) and 30° vertically.
- Length of the towing pennant should be at least twice the lightest seagoing ballast freeboard at the fairlead + 50 mtrs.
- Fairlead should be broad enough to allow passing of the largest portion of the chafing gear, towline.
- If a chafing chain is used, it should extend from the strong point to at least 3 mtrs beyond the fairlead to ensure that towing pennant remains out of the fairlead during the operation.
- Arrangement should be there for safe and effective use in darkness also. This is achieved by installing small bulbs on the float line and buoy.
- Forward arrangement should be deployed within 60 minutes with few men.
- Aft ETA should be capable of being deployed within 15 minutes by a single crew member.
The regulations for Emergency Towing Arrangement are as per SOLAS Chapter II-1, Regulation 3.4.