3 Pa. Stat. § 459-901-A
The following words and phrases when used in this article shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Adopt" or "adoption." The transfer of ownership of a dog or cat from a releasing agency to a new owner.
"Licensed doctor of veterinary medicine." A person licensed to practice veterinary medicine under the act of December 27, 1974 (P.L. 995, No. 326), known as the Veterinary Medicine Practice Act, or licensed under similar laws and qualifications in other states.
"Neuter." A procedure to render a male dog or cat unable to reproduce.
"New owner." A person who enters into a binding agreement pursuant to section 902-A and who adopts a dog or cat from a releasing agency.
"Releasing agency." A public or private pound, animal shelter, humane society or association for the prevention of cruelty to animals, rescue network kennel or other similar entity that releases a dog or cat for adoption.
"Spay." A procedure to render a female dog or cat unable to reproduce.
"Sterilize" or "sterilization." The spaying or neutering of a dog or cat.
3 P.S. § 459-901-A