Section 5-137 - Out-of-state purchases(a) A person who seeks to own a regulated firearm and purchases the regulated firearm from an out-of-state federally licensed gun importer, manufacturer, or dealer shall: (1) have the federally licensed importer, manufacturer, or dealer ship the regulated firearm to a licensee for processing; and(2) comply with §§ 5-103, 5-104, 5-117 through 5-129, and 5-136 of this subtitle.(b) If a person purchases a regulated firearm for use within the scope of the person's official duties, the Secretary may waive the 7-day waiting period under § 5-124 of this subtitle for:(1) law enforcement personnel of any unit of the federal government;(2) members of the armed forces of the United States or the National Guard; or(3) law enforcement personnel of the State or any local agency in the State.