With regard to the application of penal provisions to acts committed before this Act (or, for the provisions set forth in the items of Article 1 of the Supplementary Provisions, each of those provisions; the same applies hereinafter) comes into effect, to acts committed after this Act comes into effect in the cases where the provisions then in force continue to govern pursuant to the provisions of these Supplementary Provisions and in the cases where provisions remain in force pursuant to the provisions of these Supplementary Provisions, and to acts committed after this Act comes into effect but before the provisions of the Acts prescribed in paragraph (1) of the preceding Article, which are to remain in force pursuant to the provisions of that paragraph, cease to be effective, the provisions then in force continue to govern.