225 ILCS 447/10-37

All applicants and licensees shall: (1) provide a valid address and email address to the Department, which serves as the address of record and email address of record, respectively, at the time of application for licensure or renewal of a license; and (2) inform the Department of any change of address within 14 days after such change either through the Department's website or by contacting the Department's licensure maintenance unit.