Contracts awarded pursuant to international rules

This Directive shall not apply to contracts governed by:
(a)
specific procedural rules pursuant to an international agreement or arrangement concluded between one or more Member States and one or more third countries;
(b)
specific procedural rules pursuant to a concluded international agreement or arrangement relating to the stationing of troops and concerning the undertakings of a Member State or a third country;
(c)
specific procedural rules of an international organisation purchasing for its purposes, or to contracts which must be awarded by a Member State in accordance with those rules.