225 ILCS 320/31
The Department may establish by rule a retired plumber's license for any licensed plumber who is at least 62 years old, is physically unable to perform the responsibilities of a plumber, or any other licensed plumber as prescribed by Department rule. These rules shall only be proposed after consultation with the State Board of Plumbing Examiners. A licensed plumber shall only be issued a retired plumber's license after surrender of his or her plumber's license and payment of any applicable license fee as established by Department rule.
A retired plumber cannot perform plumbing as defined in this Act, cannot sponsor or supervise apprentice plumbers, and cannot inspect plumbing under this Act. A retired plumber cannot fulfill the requirements of subsection (3) of Section 3 of this Act.
225 ILCS 320/31