Horses, mules, asses and other equidae that are afflicted with or have been exposed to a dangerous transmissible disease may not enter or be sold at an animal market.
7 Pa. Code § 5.52
The provisions of this § 5.52 amended under section 40 of the act of July 22, 1913 (P. L. 928, No. 441) (3 P. S. § 430); and section 1702 of The Administrative Code of 1929 (71 P. S. § 442).