(a) Sections 142.021 and 142.029 do not apply to:
(1) a graduate nurse holding a temporary permit issued by the Texas Board of Nursing;
(2) a student enrolled in an accredited school of nursing or program for the education of registered nurses who is administering medications as part of the student's clinical experience;
(3) a graduate vocational nurse holding a temporary permit issued by the Texas Board of Nursing;
(4) a student enrolled in an accredited school of vocational nursing or program for the education of vocational nurses who is administering medications as part of the student's clinical experience; or
(5) a trainee in a medication aide training program approved by the department under Section 142.024 who is administering medications as part of the trainee's clinical experience.
(b) The administration of medications by persons exempted under Subdivisions (1) through (4) of Subsection (a) is governed by the terms of the memorandum of understanding executed by the department and the Texas Board of Nursing.