Or. Admin. R. 603-011-1052
The following species of livestock must bear official individual identification, regardless of age, if present at an exhibition after January 1, 2027:
(1) Beef Cattle;
(2) Cervidae (deer and elk);
(3) Dairy Cattle;
(4) Goats;
(5) Sheep; and
(6) Swine.
ORS 596.020
ORS 596.020