Article 66 and Article 68, paragraph (4) of the new Act on General Rules for National Taxes apply to a national tax for which the statutory tax return due date (including a due date deemed to be the statutory tax return due date under the provisions of the national tax laws; hereinafter referred to as the "statutory tax return due date" in this paragraph) arrives on or after January 1, 2024, and the provisions then in force continue to govern a national tax for which the statutory tax return due date arrived before that date. In this case, the penalty tax for failure to file under Article 66 of the Act on General Rules for National Taxes prior to the amendment by Article 8 (hereinafter referred to as "the former Act on General Rules for National Taxes" in this paragraph) (excluding penalty tax to which paragraph (7) of that Article applies) or the heavy penalty tax under Article 68, paragraph (2) of the former Act on General Rules for National Taxes, with respect to a national tax for which the statutory tax return due date arrived before that date, is deemed to be the specified penalty tax for failure to file, etc. prescribed in Article 66, paragraph (6), item (ii) of the new Act on General Rules for National Taxes.