12:68:19:02Establishing brucella ovis-free flock.
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
A flock of sheep may be established as a brucella ovis-free flock by showing that all rams six months old and older have passed two negative blood tests 45 to 60 days apart.
Source: 14 SDR 116, effective March 13, 1988; 18 SDR 55, effective September 23, 1991.