Ariz. Admin. Code § R9-7-1728
A licensee may use a sealed source in a well without a surface casing if the licensee follows a procedure for reducing the probability that the source will be lodged in the well. The procedure shall be separately approved by the Department or in a license issued by the Department, the NRC, or another Agreement State.
New Section R9-7-1728 recodified from R12-1-1728 at 24 A.A.R. 813, effective March 22, 2018 (Supp. 18-1).