Minn. Stat. § 35.251
Breeding cattle entering Minnesota from a country or a state not exempted by the board must have a certificate of veterinary inspection evidencing a negative test for anaplasmosis conducted at a state or federal laboratory within 30 days of entry. Cattle without a certificate must be immediately quarantined and tested for anaplasmosis at the expense of the cattle owner. Cattle having a positive reaction to the anaplasmosis test must remain quarantined until they test free of anaplasmosis or be slaughtered. An anaplasmosis test is not required of steers, cattle shipped directly to a slaughtering establishment, cattle sent to a quarantine feed lot, and other cattle excepted by board rule. The board may adopt rules to implement this section.