Article 22

Nothing in the Agreement shall prevent a Contracting Party from taking any measures:

1. (a)

   which it considers necessary to prevent the disclosure of information contrary to its essential security interests;

2. (b)

   which relate to trade in arms, munitions or war materials or to research, development or production indispensable for defence purposes, provided that such measures do not impair the conditions of competition in respect of products not intended for specifically military purposes;

3. (c)

   which it considers essential to its own security in time of war or serious international tension.