The Secretary has the sole authority to regulate the sale of regulated firearms at a gun show. A person shall be a resident of this State to sell, rent, or transfer a regulated firearm at a gun show in this State. A person other than a dealer shall obtain a Temporary Transfer Permit in accordance with Regulation .53 of this chapter before the person displays a regulated firearm for sale, rental, or transfer at a gun show. A dealer may not be issued a Temporary Transfer Permit. A dealer may conduct business at a gun show only if: All business conducted at the gun show is from a table or fixed display; A legible photostatic copy of a valid dealer’s license is displayed prominently in public view as part of the table or display; and The dealer conducts business in compliance with the applicable provisions of this chapter and Public Safety Article, Title 5, Subtitle 1, Annotated Code of Maryland. A person who possesses a Federal Firearms License is considered to be engaged in the business of selling firearms at wholesale or retail, and may not be issued a Temporary Transfer Permit. The person may not sell, rent, or transfer a regulated firearm in this State unless the person possesses a valid dealer’s license. A person who possesses a Federal Firearms License may sell, rent, or transfer a rifle or shotgun that is not a regulated firearm if: The purchase, rental, or transfer of the firearm is legal; and The purchaser, lessee, or transferee of the firearm is a resident of Maryland, Pennsylvania, Delaware, or West Virginia. A person attending a gun show may not sell, offer for sale, rent, or transfer any handgun manufactured after January 1, 1985, that is not on the handgun roster in compliance with Public Safety Article, Title 5, Subtitle 4, Annotated Code of Maryland.