From the Document: "Firearms have a unique significance in American society. Millions own or use firearms for numerous lawful purposes, such as hunting and protecting themselves in the home. Still, firearms annually cause tens of thousands of injuries and deaths, including in high-profile mass shootings. The widespread lawful and unlawful uses of firearms have prompted vigorous debate over whether further firearm regulation would be effective or appropriate. And framing the policy debate are legal issues stemming from the existing federal framework of firearms laws and the constitutional constraints that may cabin Congress's ability to legislate in this area. [...] This report provides an overview of the development of federal firearms laws and the major components of the current statutory regimes governing firearms. It then describes the constitutional considerations that may impact Congress's ability to enact firearms laws. Finally, this report describes selected topical areas where the 115th and 116th Congresses have considered legislation to amend the existing federal framework regulating firearms, highlighting some of the constitutional issues that may arise in those areas."