The applicant must demonstrate proof of service of an application referral or hearing notice, in accordance with §1-10.6, by submitting to the Board: (1) the completed form of Proof of Notification of Hearing; and (2) a U.S. Postal Service receipt if by regular mail, a signed U.S. Postal Service receipt if by certified mail, a receipt if by express delivery service, or an affidavit of service if by personal delivery. The applicant must submit to the Board proof of service of the application referral within ten (10) days of the initial filing. The applicant must submit to the Board proof of service of the hearing notice within ten (10) days of the date of the mailing or personal delivery. See Appendix A for a summary of proof of service requirements.