54. Devolution agreements and unilateral declarations.

It may be that a predecessor state and a successor state conclude an agreement which provides that relevant treaty rights or obligations of the former are to devolve onto the latter upon succession. It may equally be that a successor state makes a unilateral declaration providing for its succession to treaty rights or obligations of the predecessor state. Such agreements and unilateral declarations cannot of themselves constitute the successor state a party to the relevant treaties in relation to the other states parties