The following Table lists the amendments to code, formulae, standards, guidelines, protocols, procedures referenced in the 1997 OBC:
| Minister's Ruling No. |
Ruling
Date |
Date
Gazetted |
Effective
Date |
Nature of Amendments |
| 99-BC-01 |
June 24, 1999 |
July 10, 1999 |
Dec. 24, 1999 |
Reference new editions of various Standards listed in Table 2.6.3.2 of the OBC |
| 04-BC-02 |
Aug. 4, 2004 |
|
Sep. 20, 2004 |
Reference new editions of various Standards listed in Table 2.6.3.2 of the OBC |