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2. Each Member shall accord to the products of each other Member country treatment with regard to marking requirements no less favourable than the treatment accorded to like products of any third country. 3. Whenever it is administratively practicable to do so, Members should permit required marks of origin to be affixed at the time of importation. 4. The laws and regulations of Members relating to the marking of imported products shall be such as to permit compliance without seriously damaging the products or materially reducing their value or unreasonably increasing their cost. 5. The Members agree to work in co-operation through the Organization towards the early elimination of unnecessary marking requirements. The Organization may study and recommend to Members measures directed to this end, including the adoption of schedules of general categories of products, in respect of which marking requirements operate to restrict trade to an extent disproportionate to any proper purpose to be served, and which shall not in any case be required to be marked to indicate their origin. 6. As a general rule no special duty or penalty should be imposed by any Member for failure to comply with marking requirements prior to importation unless corrective marking is unreasonably delayed or deceptive marks have been affixed or the required marking has been intentionally omitted. 7. The Members shall co-operate with each other directly and through the Organization with a view to preventing the use of trade names in such manner as to misrepresent the true origin of a product, to the detriment of the distinctive regional or geographical names of products of a Member country which are protected by the legislation of such country. Each Member shall accord full and sympathetic consideration to such requests or representations as may be made by any other Member regarding the application of the undertaking set forth in the preceding sentence to names of products which have been communicated to it by the other Member. The Organization may recommend a ■conference of interested Members on this subject. Article 38 Publication and Administration of Trade Regulations 1. Laws, regulations, judicial decisions and administrative rulings of general application made effective by any Member, pertaining to the classification or the valuation of products for customs purposes, or to rates of duty, taxes or other charges, or to requirements, restrictions, or prohibitions on imports or exports or on the transfer of payments iherefor, or affecting their sale, distribution, transportation, insurance, warehousing, inspection, exhibition, processing, mixing or other use,