1.Promulgated as “Plant Seed Act” on December 5, 1988 by the Presidential Order no. Hua-tzung-1-yi-tzu 5591. Enforced on the same day.
2.Amended & promulgated on May 17, 2000 by the Presidential Order no. Hua-tzung- 1-yi-tzu 8900118390 for Article 2.
3.Amended & promulgated on January 30, 2002 by the Presidential Order no. Hua- tzung-1-yi-tzu 09100016990 for Article 3, 4(1), 25(1), 28~30, 34, 35, 37, 41 (1), 42~45.
4.Amended and promulgated as “Plant Variety and Plant Seed Act” on 21 April 2004 by Presidential Order no. Hua-tzung-1-yi-tzu 09300074811. Enforced on 30 June 2005 by the Executive Yuan.
5.Article 17 amended and promulgated on August 25, 2010 by President Order Hua- Tsung (1)-Yi-Tzu No. 09900219181
6.Article 4 amended and promulgated on May 23, 2018 by President Order Hua- Tsung (1)-Yi-Tzu No. 10700055481; the enforcement date to be determined by the Executive Yuan
7.Article 51 and 55 amended, Articles 53-1 Added and Promulgated on May 17, 2023 by President Order Hua- Tsung (1)-Yi-Tzu No.11200040941; the enforcement date to be determined by the Executive Yuan.