A.R.S. § 3-2132: Labeling of equines other than horses

No person, firm or corporation shall sell, transport, offer for sale or transportation or receive for transportation any carcasses of mules, or equines other than horses, or parts of such carcasses, or the meat or meat food products thereof, unless they are plainly and conspicuously marked or labeled or otherwise identified as required by rules prescribed by the director to show the kinds of animals from which they were derived. When required by the director, with respect to establishments at which inspection is maintained under this chapter, such animals and their carcasses, parts thereof, meat and meat food products shall be prepared in establishments separate from those in which cattle, sheep, swine or goats are slaughtered or their carcasses, parts thereof, meat or meat food products are prepared.