63 Pa. Stat. § 523
Nothing in this act shall prohibit service in case of emergency or domestic administration without compensation, nor service by persons authorized under the laws of this State to practice medicine, surgery, dentistry, chiropody, osteopathy, or chiropractic, nor services by barbers lawfully engaged in the performance of the usual and ordinary duties of their vocation. Nothing in this act is intended to be inconsistent with the act, approved the nineteenth day of June, one thousand nine hundred and thirty-one (Pamphlet Laws, five hundred eighty-nine), entitled "An act to promote the public health and safety, by providing for the examination and licensure of those who desire to engage in the occupation of barbering; regulating barber shops, barber schools and barber colleges, and apprentices and students therein; conferring certain powers and duties on the Department of Public Instruction; and providing penalties."
63 P.S. § 523