1.Promulgated on December 08, 1928
2.Amended on May 09, 1929
3.Amended on February 21, 1931
4.Amended on July 14, 1936
5.Amended on March 26, 1940
6.Amended on November 24, 1941
7.Amended on March 31, 1943
8.Amended on February 02, 1981
9.Amended on May 31, 1991
10.Amendment and Promulgation of Article 8 by the Presidential Order of Hua-Zong-Yi-Yi-Zi No. 10100022711 on February 3, 2012; the enforcement date of this act shall be at the directive of the Executive Yuan.
Promulgated by the Executive Yuan Order of Yuan-Shou-Yan-Zong-Zi No. 1012261456 on December 18, 2012, with the exception of Article 2, Item 6 with reference to government procurement ; the act shall take effect on January 1, 2013.