Idaho Code § 25-211
It is hereby made the duty of all persons practicing veterinary medicine in this state, all owners or operators of any laboratory making tests for the following named diseases, or owners or persons in charge of livestock or other animals, to report to the division all cases of glanders, farcy, hog cholera, tuberculosis, anthrax, rabies, dourine, scabies, pseudorabies, trichomoniasis, or brucellosis that they may find existing among animals, within this state, within forty-eight (48) hours from the date that any such case shall come to their knowledge, providing, that any such report of any of the foregoing diseases made by any practicing veterinarian, or owner or operator of any laboratory shall be made upon forms prescribed and approved by the division of animal industries of the department of agriculture of the state of Idaho, and providing that no such practicing veterinarian or owner or operator of any laboratory in this state shall make any blood tests or other official tests upon any of such animals unless they are marked with an official ear tag, other approved identification device or tattoo mark, and the number of such tag, device or mark with the name and address of the owner or owners of such animals shall be included in such report.
Idaho Code § 25-211