A.R.S. § 3-2053: Slaughtering and mixing prohibition

A. It is unlawful to slaughter horses, mules or asses in the same slaughtering establishment as cattle, sheep, swine or goats, or to bring horse meat or inedible meat or meat products into establishments where meat or meat food products are prepared for human consumption from the meat of cattle, sheep, goats or swine.

B. It is unlawful to add horse meat to meat or meat food products prepared from the meat of cattle, sheep, goats or swine.