Ill. Admin. Code tit. 35, § 401.105
If any provision of Subtitle D is adjudged invalid or if the application to any person or in any circumstances is adjudged invalid, the invalidity will not affect the validity of this Subtitle D as a whole or of any Part, Subpart, sentence or clause not adjudged invalid.
(Source: Amended at 43 Ill. Reg. 11574, effective September 25, 2019)