A licensee shall maintain a record of the activity of a strontium-90 source required by Rule 0400-20-07-.56 for the life of the source. The record must include the date and initial activity of the source as determined under Rule 0400-20-07-.56, and for each decay calculation, the date, the source activity, and the signature of the authorized medical physicist.
Tenn. Comp. R. & Regs. 0400-20-07-.100
Authority: T.C.A. §§ 68-202-101 et seq., 68-202-201 et seq. and 4-5-201 et seq.