N.J. Stat. § 4:5-50: Marking condemned cattle

All cattle condemned as a result of an official or private tuberculin test shall be plainly and permanently marked for identification by a representative of the department or the individual making or assisting with the test in a manner acceptable to or authorized by the department.

The marking of cattle for identification as provided for in this article, shall not be construed as cruelty to animals within the meaning of any laws of this state.