No person may practice radiologic technology without being registered or certified under this chapter, unless that person is a licensed practitioner as defined in RCW 18.84.020(5). A person represents himself or herself to the public as a certified radiologic technologist when that person adopts or uses a title or description of services that incorporates one or more of the following items or designations:
(1) Certified radiologic technologist or CRT, for persons so certified under this chapter;
(2) Certified radiologic therapy technologist, CRTT, or CRT, for persons certified in the therapeutic field;
(3) Certified radiologic diagnostic technologist, CRDT, or CRT, for persons certified in the diagnostic field;
(4) Certified nuclear medicine technologist, CNMT, or CRT, for persons certified as nuclear medicine technologists;
(5) Certified magnetic resonance imaging technologist, CMRIT, or CRT, for persons certified as magnetic resonance imaging technologists; or
(6) Certified radiologist assistant or CRA for persons certified as radiologist assistants.