1. The term “convoy” means a towed convoy, a pushed convoy or a side-by-side formation;
2. The term “towed convoy” means any group consisting of one or more vessels, floating establishments or assemblies of floating material towed by one or more motorized vessels, the later forming part of the convoy and being known as tugs;
3. The term “pushed convoy” means a rigid group of vessels, one at least of which is placed in front of the motorized vessel propelling the convoy and is known as a pusher. A convoy composed of a pusher and a pushed craft so as to permit guided articulation is also considered as rigid;
4. The term “side-by-side formation” means a group consisting of vessels coupled side-by-side, none of which is placed in front of the motorized vessel propelling the formation.