Section R. 285.151.41 - VehiclesRule 41.
(1) A vehicle used in transporting dogs and cats shall be mechanically sound and equipped to provide fresh air to all animals being transported without injurious drafts or undue exposure to the elements.(2) The interior of the animal cargo space shall be kept clean.(3) The vehicle shall not be overcrowded to the extent that it will cause injury to the animals being transported.(4) Animals transported in the same primary enclosure shall be of the same species and maintained in compatible groups.(5) Puppies or kittens shall not be transported with adult dogs or cats other than their dams.(6) A dog or cat exhibiting a vicious disposition shall be transported individually.(7) A female dog or cat in season or estrus shall not be transported in the same primary enclosure with a male.Mich. Admin. Code R. 285.151.41