What is GCA?
The GCA is the Gun Control Act, a 1968 law which created the licensing scheme that we operate under today. It also created a number of restrictions regarding the transfer of firearms interstate and 18 USC 922 covers all the prohibited acts under the GCA in general. The GCA also known as Chapter 44 of Title 18 has been amended and changed over the years. Some of the changes have included the FOPA (detailed below) and the expired assault weapons ban of 1994. If you are looking for a federal law regarding firearms, it is likely in Chapter 44 of Title 18.