Whistleblower Protection Act

Except as otherwise specifically provided for in these Supplementary Provisions, the provisions (excluding penal provisions) of the Whistleblower Protection Act as amended by this Act (hereinafter referred to as the "new Act") also apply to whistleblowing prescribed in Article 2, paragraph (1) of the Whistleblower Protection Act before amendment by this Act (referred to as "the Former Act" in Article 6 of the Supplementary Provisions) that was made before the enforcement of this Act.

The provisions of Article 3, paragraphs (1) and (2) of the new Act apply to dismissal or other disadvantageous treatment carried out after the enforcement of this Act, and with regard to dismissal or other disadvantageous treatment carried out before the enforcement of this Act, the provisions then in force continue to govern.

The provisions of Article 3, paragraph (3) of the new Act apply, with regard to disadvantageous treatment other than dismissal, to that carried out after the enforcement of this Act as disciplinary action (meaning disciplinary action prescribed in paragraph (2) of that Article).

With regard to the application of the provisions of Article 3, paragraph (3) of the new Act to dismissal carried out before the enforcement of this Act, the phrase "the preceding paragraph" in that paragraph is deemed to be replaced with "Article 3 before amendment by the Act Partially Amending the Whistleblower Protection Act (Act No. 62 of 2025)".

The provisions of Article 4, paragraph (1) of the new Act (limited to the part pertaining to item (i)) apply to acts listed in that item carried out after the enforcement of this Act, and with regard to acts corresponding to the acts listed in that item carried out before the enforcement of this Act, the provisions then in force continue to govern.

The provisions of Article 11-2, paragraph (2) of the new Act apply to an agreement not to engage in whistleblowing or other juridical act made after the enforcement of this Act, and do not apply to such juridical acts made before the enforcement of this Act.

With regard to a matter for which a report was requested pursuant to the provisions of Article 15 of the Former Act before the enforcement of this Act and for which the report has not actually been made at the time of the enforcement of this Act, the provisions then in force continue to govern.

With regard to the public announcement in the case where a business operator that received a recommendation under the provisions of Article 15 of the Former Act before the enforcement of this Act did not comply with that recommendation, the provisions then in force continue to govern.

With regard to the application of penal provisions to acts committed before the enforcement of this Act and to acts committed after the enforcement of this Act in the case where the provisions then in force continue to govern pursuant to the provisions of paragraph (1) of the preceding Article, the provisions then in force continue to govern.

The government is to, with a view to three years after the enforcement of this Act, take into consideration the state of enforcement of the new Act, conduct a review of the provisions of the new Act, and, if it finds it necessary, take necessary measures based on the results.