225 ILCS 90/15
A physical therapist or physical therapist assistant who has permitted his or her license to expire or who has had his or her license on inactive status may have his or her license restored by making application to the Department and filing proof acceptable to the Department of his or her fitness to have his or her license restored, including sworn evidence certifying to active practice in another jurisdiction satisfactory to the Department and by paying the required restoration fee.
If the physical therapist or physical therapist assistant has not maintained an active practice in another jurisdiction satisfactory to the Department, the Board shall determine, by an evaluation program established by rule his or her fitness to resume active status and may require the physical therapist or physical therapist assistant to complete a period of evaluated clinical experience and may require successful completion of an examination.
Any physical therapist or physical therapist assistant whose license has been expired or placed on inactive status for more than 5 years may have his or her license restored by making application to the Department and filing proof acceptable to the Department of his or her fitness to have his or her license restored, including sworn evidence certifying to active practice in another jurisdiction and by paying the required restoration fee.
However, any physical therapist or physical therapist assistant whose license has expired while he has been engaged (1) in the federal service in active duty with the Army of the United States, the United States Navy, the Marine Corps, the Air Force, the Coast Guard, or the State Militia called into the service or training of the United States of America, or (2) in training or education under the supervision of the United States preliminary to induction into the military service, may have his license restored without paying any lapsed renewal fees or restoration fee, if within 2 years after termination of such service, training or education, other than by dishonorable discharge, he furnishes the Department with an affidavit to the effect that he has been so engaged and that his service, training or education has been so terminated.
225 ILCS 90/15