6 Colo. Code Regs. § 1007-1-7J
Except as provided in Appendix 7P, the licensee shall require the authorized user of a diagnostic sealed source or a device authorized under 7.40 to be a physician, dentist, or podiatrist who:
7J1 Is certified by a specialty board whose certification process includes all of the requirements in 7J3 and 7J4 and whose certification process has been recognized by the NRC or an Agreement State. The names of board certifications that have been recognized by the NRC or an Agreement State are posted on the NRC's Medical Uses Licensee Toolkit web page;
or
7J2 Is an authorized user for uses listed in 7.32 or equivalent NRC or Agreement State requirements;
or
7J3 Has completed 8 hours of classroom and laboratory training in basic radionuclide handling techniques specifically applicable to the use of the device. The training must include
(1) Radiation physics and instrumentation;
(2) Radiation protection;
(3) Mathematics pertaining to the use and measurement of radioactivity;
(4) Radiation biology;
and
7J4 Has completed training in the use of the device for the uses requested.
6 CCR 1007-1-7J