Ill. Admin. Code tit. 38, § 360.420
An order issued by the Secretary is effective when served upon the licensee, applicant, principal party, employee, agent, person subject to the Act, or other entity doing business without the required license. All orders shall remain effective and enforceable when served, except to the extent they are stayed, modified, terminated, or set aside by the Secretary. Service of an order shall be made upon every party of record by certified mail, return receipt requested. Delivery to the United States Postal Service shall be presumed to constitute delivery to the respondent, agent, or other entity doing business without the required license.
(Source: Amended at 49 Ill. Reg. 14602, effective October 29, 2025)