N.J. Stat. Ann. § 4:5-93.49

On and after July 1, 1957, any animal giving a positive reaction to an official or private test shall not again be presented for a brucellosis test, but shall be immediately segregated, quarantined and held at the owner's expense until the division issues a written order to move the cattle, which removal shall be immediate and at the owner's expense, to a designated slaughtering center. The animals shall be slaughtered at the time and place specified in the written order, under the supervision of an authorized veterinarian approved by the division, who shall judge the carcass as to fitness for food and file a report thereon with the division within 5 days thereafter.