A bank may not engage in the trust business unless authorized by its banking permit. A bank which engages in the trust business is subject to the provisions of chapter 8 of this title in the administration of its trust accounts.
A.R.S. § 6-381
Authority of bank to engage in the trust business
Official source: Arizona State Legislature. Reproduced from public-domain Arizona statutes; confirm against the official source for the current text. Not legal advice.