The United States National Authority shall ensure that the owner, operator, occupant, or agent in charge of a facility prior to the development of the agreement relating to that facility is notified and, if the person notified so requests, the person may participate in the preparations for the negotiation of such an agreement. To the maximum extent practicable consistent with the Convention, the owner and the operator, occupant or agent in charge of a facility may observe negotiations of the agreement between the United States and the Organization concerning that facility.