A firearm application expires 90 days after the application is marked by the Secretary as not disapproved. A dealer or person shall complete the sale, rental, or transfer of a regulated firearm before the application expires. After the expiration of the 90-day limit, the application is void and the dealer or person shall return the application to the Firearms Registration Section within 7 days, in the manner prescribed by the Secretary. The Secretary shall void a firearm application that is returned as an incomplete sale, rental, or transfer. After the expiration of the 90-day limit, the prospective purchaser may submit another regulated firearm application.