(1) All sheep that are placed into commerce must have official scrapie program identification.

(2) All goats that are commingled with or exposed to sheep must have official scrapie program identification.

(3) Official scrapie program identification is not required for:

(a) Sheep or goats less than eighteen months of age that are moving directly to a slaughter facility or to an approved terminal feedlot;

(b) Wether goats and low-risk commercial goats (goats that are not registered or exhibited; goats that are not used for milk production; and goats that have not commingled with or have not been exposed to high-risk animals);

(c) Sheep or goats that do not enter commerce and never leave their premises of origin;

(d) Sheep or goats moved for grazing or other management purposes without change of ownership.