6Arrangements with other authorities
(1)The Commissioners may enter into arrangements with any other authority which is authorised to require registration of vessels navigating any waterway under the jurisdiction of that authority for the purpose of co-ordinating—
(a)the exercise of the functions conferred under this Act and under any navigation byelaws regarding the registration of vessels or the collection of charges; and
(b)the exercise by that authority of any functions conferred on them regarding the registration of vessels or the collection of charges in respect of vessels of the same or a similar class or description.
(2)Without prejudice to the generality of the foregoing any such arrangements may provide—
(a)for treating registration certificates issued by one of the parties to the arrangements as registration certificates issued by the other and a vessel registered by one of the parties to the arrangements as registered by the other;
(b)for treating distinguishing marks or numbers assigned to a vessel registered by one party to the arrangements as having been assigned to that vessel by the other; and
(c)for apportioning any charges between the parties to the arrangements.