(a) Feeder steers may be imported into this state for feeding and grazing purposes when accompanied by a permit obtained from the Commissioner of Agriculture and an official health certificate issued by the livestock official of the state of their origin certifying that such steers have passed a negative test for tuberculosis within thirty days prior to shipment and that such steers are free from all contagious and infectious diseases. The provisions of § 22-308 shall not apply to any such feeder steers. All such animals shall be identified by ear tags and shall be kept separate and apart from all dairy and breeding cattle unless they have complied with the requirements specified in § 22-292. Proper facilities for confining and restraining such animals shall be provided by the owner in order that official tests may be applied.

(b) Feeder heifers and cows may be imported into this state for feeding and grazing purposes when accompanied by a permit obtained from the Commissioner of Agriculture and by an official health certificate issued by the livestock official of the state of their origin, certifying that they have passed a negative test for tuberculosis within thirty days prior to shipment and that they are free from all contagious and infectious diseases. Such heifers or cows shall also be accompanied by a certificate certifying that they were vaccinated for brucellosis between the ages of four and eight months or that they have, within thirty days prior to shipment, passed a negative blood test for brucellosis approved by the commissioner or, if designated for such purpose by the commissioner, the State Veterinarian, and conducted by an approved laboratory. All such animals shall be identified by ear tags and shall be kept separate and apart from all dairy and breeding cattle.