1. a) The Clerk will serve the parties with the hearing officer's notice of a hearing at least 21 days before the hearing.
2. b) The Clerk will provide notice of all hearings, except for administrative citation hearings, in a newspaper of general circulation in the county in which the facility or pollution source is located, or where the activity in question occurred. Unless otherwise required by applicable law, when a hearing is to be held to satisfy the public hearing requirement of the Clean Air Act (42 USC 7401 et seq.) for State Implementation Plan revisions, the Clerk will give notice of the hearing by publication in the Illinois Register in lieu of newspaper notice. Notice must be published at least 21 days before the hearing. If the proceeding involves federal rules that the State has been delegated authority to administer, notice must be published at least 30 days before the hearing.
3. c) Whenever a proceeding before the Board may affect the right of the public individually or collectively to the use of community sewer or water facilities provided by a municipally owned or publicly regulated company, the Board shall at least 30 days prior to the scheduled date for the first hearing in the proceeding, give notice of the date, time, place, and purpose of the hearing by public advertisement in a newspaper of general circulation in the area of the State concerned [415 ILCS 5/33(c)].

(Source: Amended at 43 Ill. Reg. 9674, effective August 22, 2019)