Ohio Rev. Code § 941.31: Rules concerning Johne's disease.

(A) The director of agriculture may adopt, and may amend and rescind, rules in accordance with Chapter 119. of the Revised Code governing the importation, identification, dispensation, use, and reporting the use of vaccines for mitigating johne's disease.

(B) In determining whether an animal is infected with johne's disease, the mycobacterium paratuberculosis is isolated by a bacteriological culture or the animal is tested and the test result is positive. The test shall be conducted by a state or federal laboratory or a laboratory approved by the department of agriculture.

(C) An animal determined to be infected with johne's disease shall be identified by an official United States department of agriculture eartag, tattoo, or other method approved by the director.

(D) An animal determined to be infected with johne's disease shall not be removed from the premises except for purposes of immediate slaughter and with the permission or approval of the department.

(E) As used in this section, "johne's disease" means a disease of animals caused by the bacteria mycobacterium paratuberculosis.