"Liver Sausage" and "Braunschweiger" are sausages made from fresh or frozen pork and livers of livestock and may contain cured pork, beef and veal, and pork fat. Liver sausage may also contain beef and pork byproducts and pork skins. These products shall contain not less than 30% liver computed on the weight of the fresh liver.
7 Pa. Code § 1.409