By requiring the applicant to send a copy of the public hearing notice to the owners of record of every property which touches or abuts and every property which is directly across any public or private street from, the property involved in the application. This provision shall require that such notice be given to all such owners, including the owners of lands underwater or within another governmental jurisdiction, excepting only the following entities: the State of New York, the County of Suffolk, the Town of East Hampton, the Metropolitan Transportation Authority (Long Island Rail Road) and the owners of subdivision reserved areas other than agricultural reserved areas. (The owners of agricultural reserved areas must receive notice.) Such notice shall be made by certified mail, return receipt requested, posted at least 10 days prior to the date of the public hearing and addressed to the owners at the latest addresses listed for them in the records of the Town Assessor's office. The applicant shall file with the Board an affidavit that he has complied with this provision, together with the postal receipts evidencing notification of the abutting property owners.