Amends the Behavior Analyst Licensing Act. Adds an occupational therapist to the individuals that the Act does not prohibit from performing or advertising activities that are considered to be the practice of applied behavior analysis under the Act. In provisions concerning unlicensed practice, provides that any member, partner, shareholder, director, officer, holder of any other ownership interest, or agent of a business organization providing behavior analysis services who makes clinical decisions regarding patient care without being licensed or exempt under the Act shall be deemed to have violated the provisions. Repeals a provision concerning license restrictions and limitations. Amends the Professional Service Corporation Act. Adds the practice of applied behavior analysis by persons licensed under the Behavior Analyst Licensing Act to the list of personal services that, when combined, constitute "related professions" and "related professional services". Amends the Professional Limited Liability Company Act. Adds the practice of applied behavior analysis by behavior analysts and assistant behavior analysts licensed under the Behavior Analyst Licensing Act to the list of professional services that may be combined under a single professional limited liability company. Makes other changes. Effective immediately.