Notwithstanding the provisions of 310:281-9-13 a room or area is not required to be posted with a caution sign due to the presence of a diagnostic x-ray system provided that there are personnel in attendance during the production of x-rays who will take the precautions necessary to prevent the exposure of any individual to radiation in excess of the limits established in the regulations in this subchapter.
Okla. Admin. Code § 310:281-9-14