Animal HealthDiseasesBrucellosis

Brucellosis/Montana's Designated Surveillance Area (DSA)

DSA Regulations

DSA Boundaries 

Testing Reimbursement Forms

Additional Information



DSA Regulations

    DSA Regulations (ARM)

    Quick Reference Card

Some variances may be available with a herd plan (call MDOL at 406-444-2043).

Brucellosis (Bangs) Vaccination:

Within the entirety of counties in which the DSA is located (Beaverhead, Gallatin, Madison and Park), all sexually intact female cattle and domestic bison that are four months of age or older as of January 1 of any year must be Official Vaccinates.

Brucellosis Testing (Bleeding):

All cattle and domestic bison must be tested for brucellosis within 30 days prior to change of ownership or movement out of the DSA if they are:
  • Sexually intact and 12 months of age or older
  • Any age intended to be used for breeding purposes
  • Exceptions:
    • No test is required to take animals to an approved Montana livestock market that will test on arrival.
    • A test completed July 16 or after is acceptable for movement out of the DSA or change of ownership through February 15 the following year.

Identification and Disease Traceability:

All sexually intact cattle and domestic bison (regardless of age) leaving the DSA must be officially identified.

Official individual identification tags include:

  • Electronic Identification Device (EID) tags (also known as RFID tags);
  • Orange brucellosis (metal or RFID) vaccination tags on officially brucellosis vaccinated females;
  • Silver metal "Brite" tags (available to producers at no charge from the MDOL or USDA-APHIS office);
  • Some "age-source" program tags qualify as individual identification.

DSA Boundaries

Current DSA Boundaries

DSA Testing Compensation Requests

Costs of DSA testing and adult vaccination are compensated for veterinarians and producers on a state fiscal year schedule (July 1 through June 30) according to availability of funds and at rates specified by MDOL. Beginning July 1, 2015, requests for compensation must be received within 60 days of sample collection. Policies and compensation rates may vary from year to year; see below for current request forms.

Additional Information