Arizona Revised Statutes Title 6. Banks and Financial Institutions § 6-862. Trust funds

All monies received by a trust company as fiduciary on trust business within this state shall be deposited in a bank or savings and loan association in this state in a specially designated account or accounts, shall not be commingled with any funds of the trust company and shall remain on deposit until disbursed or invested in accordance with powers and duties of the trust company in its capacity as such fiduciary.