Denomination of 05. July 1999 reflected. Promulgated in the State Gazette Issue 95 of 14. August 1998, amended State Gazette Issue 5 of 19. January 1999.
Approved with decree No 1486 of the Council of Ministers of December 13, 1951 Prom. SG. 101/18 Dec 1951, amend. SG. 30/15 Apr 1955, amend. SG. 82/27 Sep 1996, amend. SG. 86/30 Sep 1997, amend. SG. 14/18 Feb 2000, amend. SG. 5/16 Jan 2001, amend. SG. 16/20 Feb 2001, amend. SG. 69/6 Aug 2004, amend. SG. 67/16 Aug 2005