18 Pa.C.S. § 5539: Transporting equine animals in cruel manner.

Notwithstanding any other provision of law, a person commits a summary offense for each equine animal if the person carries, or causes or allows to be carried, an equine animal in or upon a conveyance or other vehicle whatsoever with two or more levels stacked on top of one another. A person who violates this section on a second or subsequent occasion commits a misdemeanor of the third degree for each equine animal transported.