3 Pa. C.S. § 2311
The department shall have authority to impose requirements and methods for the identification of domestic animals owned, kept, possessed or transported within this Commonwealth. The department shall authorize and record the adoption and exclusive use of unique identification marks, numbers or devices, including distinctive branding marks, tattoos, microchips and other forms of identification that are affixed upon domestic animals, and shall maintain a registry of such forms of identification. The department may establish through regulations fees for the assignment, registry and exclusive use of forms of identification registered under this subchapter. Any regulations developed under this section shall not conflict with Federal regulations regarding the identification of domestic animals.
3 Pa.C.S. § 2311