AZ SB1573

Prohibits Arizona courts from relying on any religious sectarian law as controlling or persuasive authority in judicial determinations

Defines "Religious Sectarian Law" as any statute, tenet, or body of law binding a specific religious sect or tribe, explicitly excluding laws based on Anglo-American legal tradition

Exempts from the prohibition: U.S. case law based on Anglo-American legal principles, legal principles inherited from Great Britain, and recognition of traditional marriage between a man and woman officiated by clergy or secular officials

Applies to federal courts sitting in diversity jurisdiction within Arizona

Reorganizes Title 12, Chapter 22 of Arizona Revised Statutes by adding a new Article 2 titled "Religious Sectarian Laws" alongside the existing foreign laws provisions