the provision of Article 1 amending Article 16 of the Income Tax Act, the provision amending Article 20 of that Act and the provision amending Article 45 of that Act, and the provisions of the following Article and of Article 3, Article 5, Article 79 (excluding the provision amending Article 31, paragraph (2), item (ii) of the Land-holding Tax Act (Act No. 69 of 1991)) and Articles 81 through 83 of the Supplementary Provisions;