(d) Vsaka listina o ratifikaciji ali pristopu države lahko vsebuje ali ima priloženo izjavo, ki kot pogoj, da se listina šteje za predloženo, postavlja, da je deponirana tudi listina še ene druge države ali ene medvladne organizacije ali da sta deponirani listini dveh drugih držav ali listina ene druge države in ene medvladne organizacije, ki je navedena z imenom in ima pravico postati pogodbenica tega akta.
(d) Any instrument of ratification or accession of a State may contain or be accompanied by a declaration making it a condition to its being considered as deposited that the instrument of one other State or one intergovernmental organization, or the instruments of two other States, or the instruments of one other State and one intergovernmental organization, specified by name and eligible to become party to this Act, is or are also deposited.