Any person who is in the business of selling, buying, renting or trading any firearm shall register with the Department of Revenue and Taxation under the terms and conditions set forth in this Chapter and the rules and regulations adopted hereunder before engaging in any of the above activities. The term in the business of shall mean any person, natural or legal, who engages in the above activities for profit or who so engages on behalf of others, but shall not include private sales, loans, gifts or transfers of lawfully possessed firearms which have been registered and possessed under the provisions of §§ 60103 and 60110 of this Chapter.

SOURCE: GC § 8901.2.

10 Guam Code Ann. HEALTH AND SAFETY
CH. 60 FIREARMS