3 Pa. C.S. § 2305
The department shall have authority to regulate the keeping and handling of domestic animals to exclude or contain dangerous transmissible diseases and hazardous substances and to protect the environment, including the authority to require the establishment of an agricultural biosecurity area and that all such agricultural biosecurity areas so established be clearly and conspicuously posted. The department may develop a regulation to govern the form and content of posted notice to identify an agricultural biosecurity area. Nothing in this section shall be construed to authorize the department to require vaccination of any animal to prevent or control rabies whenever that animal is exempt from vaccination under the act of December 15, 1986 (P.L. 1610, No. 181), known as the Rabies Prevention and Control in Domestic Animals and Wildlife Act.
3 Pa.C.S. § 2305