225 ILCS 6/150
Notwithstanding the exclusion in paragraph (2) of subsection (c) of Section 20 that permits an individual to implement a behavior analytic treatment plan under the extended authority, direction, and supervision of a licensed behavior analyst or licensed assistant behavior analyst, beginning 24 months after the Department has commenced issuance of licenses under this Act, no business organization shall provide, attempt to provide, or offer to provide behavior analysis services unless every member, partner, shareholder, director, officer, holder of any other ownership interest, agent, and employee who renders applied behavior analysis services holds a currently valid license issued under this Act. No business shall be created that (i) has a stated purpose that includes behavior analysis, or (ii) practices or holds itself out as available to practice behavior analysis therapy, unless it is organized under the Professional Service Corporation Act or Professional Limited Liability Company Act. Nothing in this Act shall preclude individuals licensed under this Act from practicing directly or indirectly for a physician licensed to practice medicine in all its branches under the Medical Practice Act of 1987 or for any legal entity as provided under subsection (c) of Section 22.2 of the Medical Practice Act of 1987.
225 ILCS 6/150