(a) Notice shall be mailed by certified mail, return receipt requested. Proof of mailing to the proper address on the return receipt shall be accepted as conclusive evidence of the fact of the mailing.(b) The applicant shall file proof of publication with the chief clerk within 30 days after publication. Filing an affidavit executed by the publisher accompanied by a printed copy of the notice as published creates a rebuttable presumption of compliance with the requirement to publish notice.(c) The applicant shall file proof of posting with the chief clerk within 30 days of posting. Proof of posting may be made by the return affidavit of the sheriff or constable, or, by the affidavit of a credible person made on a copy of the posted notice showing the fact of the posting.