Illinois Statutes Chapter 110. Higher Education § 305/120. Modification of athletic or team uniform permitted

(a) The Board of Trustees must allow a student athlete to modify his or her athletic or team uniform due to the observance of modesty in clothing or attire in accordance with the requirements of his or her religion or his or her cultural values or modesty preferences. The modification of the athletic or team uniform may include, but is not limited to, the wearing of a hijab, an undershirt, or leggings. If a student chooses to modify his or her athletic or team uniform, the student is responsible for all costs associated with the modification of the uniform and the student shall not be required to receive prior approval from the Board of Trustees for such modification. However, nothing in this Section prohibits the University from providing the modification to the student.

(b) At a minimum, any modification of the athletic or team uniform must not interfere with the movement of the student or pose a safety hazard to the student or to other athletes or players. The modification of headgear is permitted if the headgear: