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1.    Promulgated on May 29, 1944 by the Government; effective on January 1,1949 

2.  Amended and Promulgated on January 22, 1959 by Presidential Order 

3.  Amended and Promulgated on May 12, 1960 by Presidential Order 

4.  Amended and Promulgated on April 16, 1979 by Presidential Order 

5.  Amended and Promulgated on December 24, 1986 by Presidential Order 

6.  Amended and Promulgated on January 21, 1994 by Presidential Order 

7. Amended and Promulgated on May 7, 1997 by Presidential Order; effective on 

   January 1, 2002        

8.  Amended and Promulgated on October 24, 2001 by Presidential Order 

9.  Amended and Promulgated on February 6, 2003 by Presidential Order; 

     effective on July 1, 2004         

10.  Amended and Promulgated on August 25, 2010 by Presidential Order; 

       effective on September 12, 2010         

11.  Amended and Promulgated on December 21, 2011 by Presidential Order

         (The 2011 Amendment will be effective on January 1, 2013)

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Last Update: 22-01-2013