Such rules and regulations shall be promulgated in accordance with the provisions of "The Illinois Administrative Procedure Act", as amended.
15 ILCS 505/17.1
The Treasurer shall have the power to make and provide rules and regulations necessary for the effective administrative performance of the duties imposed upon him by law
Known as the State Treasurer Act
The act spans §§ 15-505-0-01 to 15-505-9 (36 sections).
P.A. 84-1298.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.