AgView and GVL users only: Due to the rapid electronic communication of these CVI apps with our system, you will not need to have an entry permit for movement into Colorado.
All bison (regardless of age or sex) for exhibition, show, rodeo, or recreational events need to be individually identified with official ID ear tags and the official ear tag number needs to be listed on the certificate of veterinary inspection (CVI).
NOTE: As of Jan. 1, 2016, domestic bison are NOT required to be tested for brucellosis for entry into Colorado.
Entry Permits can be obtained by Calling (303) 869-9130 or using the Online Permitting System (OPS). For more information on OPS please visit the OPS Resources Webpage.
Cows/Heifers
- Certificate of Veterinary Inspection (CVI) issued by an accredited veterinarian within 30,days prior to entry into Colorado unless shipping directly from the ranch of origin to a licensed livestock market or shipping directly to a federally inspected slaughter establishment.
- Permit required for Non-OCV (Official Calfhood Vaccinate) bison cows/heifers prior to entry by calling (303) 869-9130 or using the Online Permitting System (OPS), unless shipping directly to a federally inspected slaughter establishment or a Colorado Approved Feedlot.
- Official ID ear-tag for all bison cows/heifers 18 months of age or older. This should be one of the following:
- 15-digit Animal Identification Number: 840-series ear-tag (visual tag, RFID tag, or combination of the two).,*900-series tags may only be used as Official ID if they were applied to the ear on or before March 11, 2015
- Silver "brite" metal ear-tag with state of origin two-digit code (NUES tag).
- An orange Brucellosis (OCV) ear tag.
- Official ID must be individually listed on the CVI for each bison cow/heifer 18 months of age or older.
Bulls
- Certificate of Veterinary Inspection (CVI) issued by an accredited veterinarian within 30,days prior to entry into Colorado unless shipping directly from the ranch of origin to a licensed livestock market or to a federally inspected slaughter establishment.
- Permit required prior to entry by calling (303) 869-9130 or using the Online Permitting System (OPS), unless shipping directly to a federally inspected slaughter establishment or a Colorado Approved Feedlot.
- Official ID ear-tag for all bison bulls 18 months of age or older. This should be one of the following:
- 15-digit Animal Identification Number: 840-series ear-tag (visual tag, RFID tag, or combination of the two). *900-series tags may only be used as Official ID if they were applied to the ear on or before March 11, 2015
- Silver "brite" metal ear-tag with state of origin two-digit code (NUES tag).
- Official ID must be individually listed on the CVI for each bison bull 18 months of age or older.