40 C.F.R. § 22.45
(2) Type and content of public notice. The complainant shall provide public notice of the complaint (or the proposed consent agreement if § 22.13(b) is applicable) by a method reasonably calculated to provide notice, and shall also provide notice directly to any person who requests such notice. The notice shall include:
(1) Participation in proceeding.
(4) Petition to set aside a consent agreement and proposed final order.
(v) The Petition Officer shall review the petition, and complainant's response, and shall file with the Regional Hearing Clerk, with copies to the parties, the commenter, and the Presiding Officer, written findings as to:
(vii) Upon a finding by the Petition Officer that a resolution of the proceeding without a hearing is appropriate, the Petition Officer shall issue an order denying the petition and stating reasons for the denial. The Petition Officer shall: