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.
S.D. Admin. R. 12:68:24:15
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.