This Act comes into effect on the date on which the Marrakesh Agreement Establishing the World Trade Organization enters into force for Japan; provided, however, that the provisions of Articles 2 and 5 and the provisions of Article 3, Article 4 (limited to the part replacing "Appended Table 1 (A)" with "Appended Table 1"), Article 5 and Article 6 of the Supplementary Provisions come into effect on April 1, 1995 (or, if the date on which the Marrakesh Agreement Establishing the World Trade Organization enters into force for Japan falls after April 1, 1995, on the day specified by Cabinet Order that falls on or after the date of that entry into force).

With regard to the application of penal provisions to acts committed before this Act comes into effect (or, for the provisions prescribed in the proviso to Article 1 of the Supplementary Provisions, before those provisions come into effect; the same applies hereinafter) and to acts committed after this Act comes into effect in relation to goods for which the provisions then in force are to continue to govern pursuant to the provisions of Article 3 of the Supplementary Provisions and the preceding Article, the provisions then in force continue to govern.

Beyond what is provided for in Article 2 through the preceding Article of the Supplementary Provisions, the transitional measures necessary for the enforcement of this Act are specified by Cabinet Order.