18 Pa.C.S. § 5537: Selling or using disabled horse.

A person commits a summary offense if the person offers for sale or sells a horse, which by reason of debility, disease or lameness, or for other cause, could not be worked or used without violating the laws against cruelty to animals, or leads, rides, drives or transports any such horse for any purpose, except that of conveying the horse to the nearest available appropriate facility for humane keeping or destruction or for medical or surgical treatment.