Article 24 (3)

The provisions of this Treaty other than those referred to in paragraph (1) shall not be construed to prevent any Contracting Party from taking any measure which it considers necessary:

(a) for the protection of its essential security interests including those

(i) relating to the supply of Energy Materials and Products to a military establishment; or

(ii) taken in time of war, armed conflict or other emergency in international relations;

(b) relating to the implementation of national policies respecting the non-proliferation of nuclear weapons or other nuclear explosive devices or needed to fulfil its obligations under the Treaty on the Non-Proliferation of Nuclear Weapons, the Nuclear Suppliers Guidelines, and other international nuclear non-proliferation obligations or understandings; or

(c) for the maintenance of public order. Such measure shall not constitute a disguised restriction on Transit.