In the case of a federal or non-unitary State, the following provisions shall apply:-

(a) with respect of those articles of this Convention that come within the legislative jurisdiction of the federal authority, the obligations of the federal Government shall to this extent be the same as those of Contracting States which are not federal States;

(b) with respect to those articles of this Convention that come within the legislative jurisdiction of constituent States or provisions which are not, under the constitutional system of the federation, bound to take legislative action, the federal Government shall bring such articles with a favorable recommendation to the notice of the appropriate authorities of constituent States or provinces at the earliest possible moment;

(c) a federal State Party of this Convention shall, at the request of any other Contracting State transmitted through the Secretary-General of the United Nations, supply a statement of the law and practice of the federation and its constituent units in regard to any particular provision of this Convention, showing the extent to which effect has been given to that provision by legislative or other action.