1 The route to be followed should be planned in
advance, taking into account such factors as the anticipated weather,
tidal streams and currents, the size, shape, windage and displacement
of the tow and any navigational hazards to be avoided. Weather routeing
advice should be used where available. Careful consideration is to
be given to the number, size and effective bollard pull of the towing
ship or ships to be employed.
2 There should be a contingency plan to cover
the onset of adverse weather, particularly in respect to arrangements
for heaving to or taking shelter.
3 Where the towing operation falls under the jurisdiction
of an approving authority, any certificate issued should specify the
intended general route and indicate any special conditions, also noting
the responsibility and authority of the master/person in command of
tug and tow to deviate from the proposed route should circumstances
warrant this measure.