Ear Tagging 

Female and male calves to be registered must have approved dairy tag sets (white) placed in both ears within 24 hours of birth. If a bull calf is leaving the farm for veal, etc. a single CCIA RFID button (yellow) from the local supply store is an acceptable alternative. This is an efficient way to identify animals for national health, tracking, on-farm management, evaluations and registration. If using a single tag use right ear. If a bull calf is leaving the farm for beef or veal, a single CCIA RFID yellow button is acceptable.

National Livestock Identification