1.Promulgated on November 17, 1966
2.Addition of Article 12-1 promulgated on June 29, 1995.
3.Amendment to Article 50 promulgated on May 21, 1997.
4.Amendment to Articles 2 ~ 4, 6, 10, 11, 12-1, 13, 14, 25 ~ 27, 30 ~ 32, 35, 38, 39, 42, 46, 49, 55, 58~ 60, 81, 107, 108, 110, and 112, addition of Articles 93-1 ~ 93-6, and deletion of Articles 15 & 37 promulgated on December 18, 2002.
5.Addition of Articles 12-2, 12-3, and 60-1, amendment to Articles 12-1, 41, 50, 56, 59, 60, and 93 promulgated on June 30, 2004.
6.Amendment to Article 12-3 promulgated on May 18, 2005
7.Addition of Article 110-1 and amendment to Article 110 of the Water supply Act per Presidential Decree No. Hua-Zong-Yi-Yi-Zi-096000009761 dated January 24, 2007.
8.Addition of Articles 17-1, and 61-1, amendment to Articles 23 promulgated on January 21, 2009.
9.Amendment to Article 12-2 and 59 of the Water Supply Act per Presidential Decree No. Hua-Zhong-Yi-Yi-Zi-09900019961 dated January 27, 2010.
10.Amendment to Article 12-2 of the Water Supply Act per Presidential Decree No. Hua-Zhong-Yi-Yi-Zi- 09900146521 dated June 15, 2010.
11.Amendment to Article 61 on December 19, 2012 by Presidential Decree No. Hua-Zhong-Yi-Yi-Zi- 10100279751.
12.Addition of Articles 12-4, amendment to Article 12-2, 52, 53, and 61-1 on January 16, 2013 by Presidential Decree No. Hua-Zhong-Yi-Yi-Zi- 10200007551.
13.Amendment to Article 93 on January 29, 2014 by Presidential Decree No. Hua-Zhong-Yi-Yi-Zi- 10300011811.
14.Amendment to Articles 12-1, 12-2 & 50, addition of Chapter 6-1 and Articles 95-1, 95-2 & 98-1, and deletion of Articles 60-1 promulgated on May 4, 2016 by Presidential Decree No. Hua-Zhong-Yi-Yi-Zi- 10500037371.
15.Addition of Articles 61-2 on December 4, 2019 by Presidential Decree No. Hua-Zhong-Yi-Yi-Zi- 10800130961.
16.Addition of Articles 61-1 on February 3, 2021 by Presidential Decree No. Hua-Zhong-Yi-Yi-Zi- 11000008921.
17.Amendment to Articles 8, 97 and Addition of Articles 97-1 and 97-2 on June 28, 2023 by Presidential Decree No. Hua-Zhong-Yi-Jing-Zi- 11200054071