Ariz. Admin. Code § R12-5-521
No existing lease or permit shall be modified or amended for a term any different than the term set forth therein unless mutually agreed upon by the Commissioner and the lessee or permittee.
Original rule, Art. I, Subchapter B, Ch. II (Supp. 76-4). Section R12-5-521 renumbered from Section R12-5-120 (Supp. 93-3).