Community shall provide 30 days' notice , from the date of Where different criteria for determining origin are laid downthe Community's communication , before the decision is put for products falling within the same category , certificates or into effect. Products shipped before the date of entry into declarations of origin shall contain a sufficiently detailedeffect of the decision shall remain subject to the earlier description of the goods to enable the criterion to be classification practice , provided that the goods in question determined on the basis of which the certificate was issued or are presented for importation into the Community within the declaration drawn up .60 days of that date .4. Where a Community decision on classification Article 5resulting in a change of classification practice or a change ofcategorization of any product subject to the Agreement The discovery of slight discrepancies between the statementsaffects a category subject to restraint , the two Parties agree to made in the certificate of origin and those made in theenter into consultation in accordance with the procedures documents produced to the customs office for the purpose ofdescribed in Article 14 of the Agreement with a view to carrying out the formalities for importing the product shallhonouring the obligation under the second subparagraph of not ipso facto cast doubt upon the statements in theArticle 10 ( 2 ) of the Agreement. certificate . TITLE III TITLE II DOUBLE-CHECKING SYSTEM FOR CATEGORIES OF ORIGIN PRODUCTS WITH QUANTITATIVE LIMITS Article 2 Section I1. Products originating in Czechoslovakia for export to Exportationthe Community in accordance with the arrangementsestablished by this Agreement shall be accompanied by acertificate of Czechoslovakia origin conforming to the model Article 6