(1) Bison may enter the state of Montana provided they enter in conformity with ARM 32.3.201 through 32.3.211 and in addition:  

(a) are officially tested negative for brucellosis within 30 days prior to entry except the following:

(i) steers, spayed heifers, and calves under 12 months of age;

(ii) bison consigned directly to an official slaughtering establishment for immediate slaughter;

(iii) an official calfhood vaccinate less than 24 months of age (the first pair of permanent incisors has not fully erupted) and which is not parturient, post parturient, or in the last trimester of pregnancy;

(iv) bison originating in an official certified brucellosis free bison herd;

(b) bison required to be tested for Brucellosis prior to entry may be quarantined for a 45 to 120 day Brucellosis retest, at owner's expense, after arrival in Montana. Included here will be all female bison from states or areas with Brucellosis classification of A, B, or lower;

(c) female bison must be officially calfhood vaccinated by a deputy state veterinarian prior to entry into Montana, with a Brucella abortus vaccine approved by the administrator of the Animal and Plant Health Inspection Service, U.S. Department of Agriculture except the following:

(i) spayed bison;

(ii) bison consigned directly to an official slaughtering establishment for immediate slaughter;

(iii) nonvaccinated bison four to 11 months of age placed under quarantine upon arrival, for official calfhood vaccination or spaying by a deputy state veterinarian, within 30 days of their entry;

(iv) nonvaccinated bison less than four months of age, imported without their dams, placed under quarantine upon arrival, for official calfhood vaccination or spaying by a deputy state veterinarian, within six months of their entry; and

(v) all bison imported under this rule shall be officially identified prior to importation and listed on the official health certificate; and

(d) all bison imported into Montana must meet the interstate requirements set forth in Title 9 CFR.