; (4) to facilitate the tracing of qualifying firearms used in crime by Federal and State law enforcement agencies; and (5) to hold criminally and civilly liable those who facilitate the transfer of qualifying firearms, causing risk of injury and negligent or reckless death associated with the transfer of those qualifying firearms. 3. Definitions (a) In general In this Act, the terms firearm , qualifying firearm , and State have the meanings given those terms in section 921(a) of title 18, United States Code, as amended by subsection (b). (b) Title 18, United States Code Section 921(a) of title 18, United States Code, is amended by adding at the end the following: (36) The term detachable ammunition feeding device — (A) means a magazine, belt, drum, feed strip, or similar device that— (i) is capable of being detached from a semiautomatic rifle; and (ii) has a capacity of, or that can be readily restored or converted to accept, more than 10 rounds of ammunition; and (B) does not include an attached tubular device designed to accept, and capable of operating only with, .22 caliber rimfire ammunition. (37) The term firearm owner license means a license issued under section 923(m). (38) The term qualifying firearm — (A) means— (i) a handgun; or (ii) a semiautomatic rifle that is capable of accepting a detachable ammunition feeding device; and (B) does not include an antique firearm. . I Licensing 101. Licensing requirement Section 922 of title 18, United States Code, is amended by adding at the end the following: (aa) Firearm licensing requirement (1) In general Subject to paragraph (2), it shall be unlawful for any individual other than a licensed importer, licensed manufacturer, licensed dealer, or licensed collector to possess a qualifying firearm on or after the applicable date, unless that individual has a valid— (A) firearm owner license