t;1 ST i ] ;ENIER AI A(lREEltMENT O)N TARIFFS AN)TRADE -OCT. 30 , 1947 (a) no regulations shall be made which, formally or in effect, require that any specified amount or proportion of the product in respect of which such regulations are applied must be supplied from domestic sources; (b) no contracting party shall, formally or in effect, restrict the mixing, processing or use of a product of which there is no substantial domestic production with a view to affording protection to the domestic production of a directly competitive or substitutable product. 4. The provisions of paragraph 3 of this Article shall not apply to: (a) any measure of internal quantitative control in force in the territory of any contracting party on July 1, 1939 or April 10, 1947, at the option of that contract- ing party; Provided that any such measure which would be in conflict with the provisions of paragraph 3 of this Article shall not be modified to the detriment of imports and shall be subject to negotiation for its limitation, liberalization or elimination; (b) any internal quantitative regulation relating to exposed cinematograph films and meeting the requirements of Article IV. 5. The provisions of this Article shall not apply to the pro- ourement by governmental agencies of products purchased for governmental purposes and not for resale or use in the production of goods for sale, nor shall they prevent the payment to domestic producers only of subsidies provided for under Article XVI, including payments to domestic producers derived from the proceeds of internal taxes or charges and subsidies effected through governmental purchases of domestic products.
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