6.1 All aspects of the towage should be planned
in advance, taking into account such factors as maximum anticipated
environmental conditions as reflected in section
9.1, including tidal streams, current and water depths, as
well as the size, windage, displacement and draft of the tow. Possible
cargo and cargo securing arrangements on board the towed object should
also be taken into consideration. Strength calculation of non-routine
cargo securing arrangements should be carried out. Weather routeing
advice should be obtained and used where available and appropriate,
and careful consideration given to the bollard pull of the towing
vessel(s) to be employed, of. section 9.4.
The towing arrangements and procedures should be such as to reduce
to a minimum any danger to personnel during the towing operations.
6.2 There should be a contingency plan on board
the towing vessel to cover the onset of adverse weather, particularly
in respect of arrangements for heaving to or taking shelter. Personnel
should be familiarized with their responsibilities and duties in an
emergency situation in accordance with this contingency plan. If the
towed object is manned, the contingency plan should also be carried
on such object.
6.3 There should be operation or towing manuals
on board the towing vessel which describe routine towing operations
and additional manuals to describe any special towage requirements,
of which due account should be taken.