The Agency shall promptly investigate such petition and consider the views of persons who might be adversely affected by the grant of a variance. The Agency shall make a recommendation to the Board as to the disposition of the petition. If the Board, in its discretion, concludes that a hearing would be advisable, or if the Agency or any other person files a written objection to the grant of such variance within 21 days, together with a written request for hearing, then a hearing shall be held, under the rules prescribed in Sections 32 and 33 (a) of this Act, and the burden of proof shall be on the petitioner.
If the Agency grants a provisional variance, the Agency must promptly file a copy of its written decision with the Board, and shall give prompt notice of its action to the public by issuing a press release for distribution to newspapers of general circulation in the county. The Board must maintain for public inspection copies of all provisional variances filed with it by the Agency.
415 ILCS 5/37