Tex. Occupations Code § 602.202: EXEMPTIONS FROM LICENSE REQUIREMENT.

This chapter does not apply to:

(1) a practitioner engaged in the performance of radiological procedures;

(2) a person certified as a medical radiological technologist practicing under Chapter 601;

(3) a person who performs radiological procedures under a practitioner's instruction or supervision;

(4) a person performing beam calibration and characterization, quality assurance, instrument specification, acceptance testing, shielding design, or protection analysis on radiation-emitting equipment or radiopharmaceuticals for procedures not involved with the diagnosis or treatment of a disease or another human medical or dental condition; or

(5) a person who is:

(A) employed by a state or federal regulatory agency; and

(B) performing duties in the scope of the person's employment.

Acts 1999, 76th Leg., ch. 388, Sec. 1, eff. Sept. 1, 1999.