7 Pa. Code § 9.21
When a tuberculosis reactor or suspect is disclosed, the veterinarian applying the test shall establish a quarantine on the entire herd. The number of animals in each age group should be described on the quarantine.
The provisions of this § 9.21 amended November 28, 1975, effective November 29, 1975, 5 Pa.B. 3099. Immediately preceding text appears at serial page (1423).