Nothing in this chapter may be construed to prohibit or restrict:

     (1) The practice by an individual licensed, certified, or registered under the laws of this state and performing services within the authorized scope of practice;

     (2) The practice by an individual employed by the government of the United States while engaged in the performance of duties prescribed by the laws of the United States;

     (3) The practice by a person who is a regular student in an educational program approved by the secretary, and whose performance of services is pursuant to a regular course of instruction or assignments from an instructor and under the general supervision of the instructor.

[2002 c 216 § 4.]