A herd is certified for 36 months. For continuous certification all animals in the herd must have a negative test between 33 and 39 months after the last certification date.

If suspects or reactors are found on recertification testing, certification status is terminated and a herd investigation shall be initiated.

Source: 21 SDR 162, effective March 23, 1995; 23 SDR 122, effective February 5, 1997; 25 SDR 33, effective August 31, 1998; 34 SDR 100, effective October 22, 2007.

General Authority: SDCL 40-3-14 , 40-3-25 , 40-3-26 , 40-5-8.6.

Law Implemented: SDCL 40-3-14 , 40-5-8 , 40-5-8.2 , 40-5-8.3 , 40-5-8.4 , 40-5-9.