1. Promulgated on July 11, 2007; effective as of January 11, 2008.
2. Amendment to Articles 4, 37, and 40 promulgated by Presidential Order on May 27, 2009, effective November 23, 2009.
3. Amendment promulgated on July 1 2015; effective on January 1, 2016.
4. Amendment to Articles 4, 37, and 40 promulgated by Presidential Order on November 21, 2018; entered into force on the date of promulgation.