6 Colo. Code Regs. § 1007-1-7N
The licensee shall require the nuclear medicine technologist using radioactive materials under the supervision of an authorized user to be an individual who can, upon the request of the Department, demonstrate:
7N1 Evidence of:
7N1.1 Current registration with The American Registry of Radiologic Technologists with competency in Nuclear Medicine (ARRT(N));
or
7N1.2 Current certification by The Nuclear Medicine Technology Certification Board in Nuclear Medicine (CNMT);
or
7N1.3 Being board-eligible to take the CNMT or ARRT(N) examination;
or
7N1.4 Current certification by a specialty board recognized in writing by the Department;
or
7N2 Is able to demonstrate adequate prior experience as:
7N2.1 A full-time nuclear medicine technologist for a minimum of two years during the past five-year period prior to August 14, 2020 under the supervision of an authorized user and has achieved a level of competency sufficient to function independently as a nuclear medicine technologist;
or
7N2.2 An experienced nuclear medicine technologist working at a facility holding a Department license before October 25, 2005.
6 CCR 1007-1-7N