65. (i) The Units shall be obliged to take whatever measures are necessary within their autonomous sphere of action for the execution of treaties; if a Unit does not comply with this obligation in due time, the Federation shall be vested with the powers to take such measures, and specially to enact necessary laws.
(ii) Likewise, the Federation, when carrying out treaties with foreign states, shall have the right of supervision even in regard to such matters as come within the autonomous sphere of action of the Units. In this case the Federation shall have the same rights even against the Units as in matters of indirect Federal Administration.