During the performance of the contract, the purchaser may ask the competent administrative authority or, in the case of a contractor established abroad, refer the matter to the national security authority or the delegated security authority for the purpose of requesting the national security authority of the contractor’s State or the designated security authority of that State, subject to the existence of security agreements and within a time limit it shall set, to:
1° Provide proof of the security clearances it has issued;
2° Verify the conformity of the premises and installations likely to be used, the industrial and administrative procedures that will be followed, the information management arrangements or the situation of the personnel likely to be employed for the performance of the contract, without prejudice to the possibility of carrying out other investigations and taking them into account.