Upcoming Webinars

Site Updates


The analysis of any legal or medical billing is dependent on numerous specific facts — including the factual situations present related to the patients, the practice, the professionals and the medical services and advice. Additionally, laws and regulations and insurance and payer policies are subject to change. The information that has been accurate previously can be particularly dependent on changes in time or circumstances. The information contained in this web site is intended as general information only. It is not intended to serve as medical, health, legal or financial advice or as a substitute for professional advice of a medical coding professional, healthcare consultant, physician or medical professional, legal counsel, accountant or financial advisor. If you have a question about a specific matter, you should contact a professional advisor directly. CPT copyright American Medical Association. All rights reserved. CPT is a registered trademark of the American Medical Association.

Log in

Log in

Illinois Occupational Therapy Assistants

Which services are OTAs allowed to practice?


Are there specific services that OTAs are prohibited from practicing?


What are the responsibilities of the OT when delegating to a OTA?

Supervision is a process in which 2 or more persons participate in a joint effort to establish, maintain and elevate a level of performance and shall include the following criteria:

    • To maintain high standards of practice based on professional principles, supervision shall connote the physical presence of the supervisors and the assistant at regularly scheduled supervision sessions.
    • Supervision shall be provided in varying patterns as determined by the demands of the areas of patient/client service and the competency of the individual assistant.  Such supervision shall be structured according to the assistant's qualifications, position, level of preparation, depth of experience and the environment within which he/she functions.
    • The supervisors shall be responsible for the standard of work performed by the assistant and shall have knowledge of the patients/clients and the problems being discussed.  Co-signature does not reflect supervision.

What type of supervision is required?

OTAs with less than one (1) year of work experience

The OTA who has less than one year of work experience or who is entering new practice environments or developing new skills shall receive a minimum of 5% on-site face‑to-face supervision from a registered OT per month.  On-site supervision consists of direct, face-to-face collaboration in which the supervisor must be on the premises.  The remaining work hours shall be supervised by a combination of telephone, electronic communication, telecommunication, technology or face-to-face consultation.

OTAs with more than one (1) year of work experience

The OTA with more than one year of experience in his/her current practice shall have a minimum of 5% direct supervision from a registered OT per month.  The 5% direct supervision shall consist of 2% direct, face-to-face collaboration.  The remaining 3% of supervision shall be a combination of telephone, electronic communication, telecommunication technology or face-to-face consultation.

Documentation of supervision

It is the responsibility of the OTA to maintain on file at the job site signed documentation reflecting supervision activities.  This supervision documentation shall contain the following: 

    • Date of supervision,
    • Means of communication,
    • Information discussed and
    • The outcomes of the interaction. 

Does the supervising OT need to co-sign documentation created by the OTA?

Both the supervising OT and the OTA must sign each entry.

What is the ratio between supervising OTs and OTAs?


Required designation for assistants

Any person who is issued a license as an occupational therapy assistant under the terms of this Act may use the words, "occupational therapy assistant" or "licensed occupational therapy assistant", or he or she may use the letters "O.T.A.", "OTA/L", or "COTA/L" in connection with his or her name or place of business to denote his or her licensure


225 ILCS 75/2

225 ILCS 75/15

69 Ill. Admin. Code 1315.163

About Us

Therapy Comply is a healthcare compliance firm that seeks to bring high quality web-based compliance guidance and one-on-one consulting services to small and medium size physical, occupational, and speech therapy practices.

Learn More 

Join Us

Join today as either a monthly or a yearly member and enjoy full access to the site and a significant discount to our live and recorded webinars.  Members also have access to compliance and billing support.

Join Today 

Find Us

Powered by Wild Apricot Membership Software