Michigan Compiled Laws, Chapter 287. Animal Industry § 287.839

Sec. 39. (1) Breeding swine brought into this state shall remain at the destination stated on the official interstate health certificate or official interstate certificate of veterinary inspection until the herd owner obtains a negative official test for pseudorabies conducted not less than 30, or more than 60, days following the date of importation. The director may grant an exemption for infected herds under quarantine.

(2) Swine imported into this state shall bear official identification.

(3) The importation of swine vaccinated for pseudorabies is prohibited.

(4) A person shall not bring swine into this state from a livestock auction market or other collection facility where slaughter swine are handled except when importing swine for slaughter purposes only.

(5) The director may waive specific requirements if it is determined that livestock imported from a certain area or state are not a threat to the health of native livestock.