The Commonwealth reserves the right to test an animal for Johne's disease. It shall be unlawful for a person to impede, hinder or interfere or to refuse to confine so as to allow testing without undue burden on the person testing or to present his domestic animals for testing by officers or agents of the Department in the performance of duties imposed by this title after reasonable notice of the proposed testing has been given.
7 Pa. Code § 11.7