Chapter 29. Manufacture, Transportation, or Distribution of Switchblade Knives 15 U.S. Code §1241. Definitions 15 U.S. Code §1242. Introduction, manufacture for introduction, transportation or distribution in interstate commerce; penalty 15 U.S. Code §1243. Manufacture, sale, or possession within specific jurisdictions; penalty 15 U.S. Code §1244. Exceptions 15 U.S. Code §1245. Ballistic knives