(a) A document may be filed or delivered in person, by certified mail with return receipt requested, or courier delivery.(1) In-person or hand delivery. The filing or delivery time for a document delivered by this method is the date shown on a receipt which is signed and dated by the receiving party acknowledging personal delivery. The sending and receiving party each shall keep a copy of the signed and dated receipt.(2) Certified mail. The filing or delivery time for a document delivered by this method is the postmark shown on the receipt.(3) Courier delivery. The filing or delivery time for a document delivered by this method is the postmark shown on the courier receipt.(b) In computing a deadline that starts to run from the date of receipt of a notice or other information, the date of receipt shown on the return receipt or a courier receipt showing the date delivered to the correct address shall be the conclusive evidence of the date of receipt.