Note 1 to paragraph (b): If your valid application and premium are mailed to VA, the postmark date will be the date of delivery.
Note 2 to paragraph (b): If a postmark date is not available, the date of delivery will be the date your valid application and premium are received by VA.
Note 3 to paragraph (b): If you apply for insurance coverage through an electronic medium, the date of delivery of the premium payment will be the date you authorize payment of the initial premium. In cases where the authorization does not result in the required premium payment because there were insufficient funds to cover the full initial premium, the delivery date of the premium payment will be the date your full initial premium is received by VA.
Note to paragraph (c): For example, if your postmark date is August 15 and you request an effective date of February 1, you must pay the insurance reserve amount for February 1 through July 31, and also pay the August premium.
38 C.F.R. §8.1