High Quality Content by WIKIPEDIA articles! The Gun Control Act of 1968, Pub. L. No. 90-618, 82 Stat. 1213 (also known as GCA or GCA68, and codified as Chapter 44 of Title 18, United States Code) is a federal law in the United States that broadly regulates the firearms industry and firearms owners. It primarily focuses on regulating interstate commerce in firearms by generally prohibiting interstate firearms transfers except among licensed manufacturers, dealers and importers.