In no case shall the provisions of Articles 26 and 26A be construed so as to impose on one of the States the obligation:
- a)to carry out administrative measures at variance with the laws or the administrative practice of that or of the other State;
- b)to supply information which is not obtainable under the laws or in the normal course of the administration of that or of the other State; or
- c)to supply information which would disclose any trade, business, industrial, commercial, or professional secret or trade process, or information, the disclosure of which would be contrary to public policy (ordre public).
