Sponsors (2)
The bill aims to strengthen federal tools and transparency to prevent and respond to mass-casualty incidents, but it does so by expanding prosecutorial reach and reporting requirements in ways that create privacy risks, regulatory uncertainty for gun owners and manufacturers, and added administrative costs.
Students, worshippers, voters, hospital patients and other people in public gathering places could face fewer mass-shooter attacks because the bill creates a federal penalty targeting use of machineguns and covered semiautomatic weapons.
Federal law enforcement agencies gain a clear federal offense and improved jurisdictional authority to investigate and prosecute mass killings that cross state or interstate lines, improving coordination across jurisdictions.
The public, Congress, and taxpayers receive greater transparency through required DOJ reporting on terrorism/WMD prosecutions and victim impacts, supporting oversight of enforcement actions and informed policy decisions.
People who possess semiautomatic rifles, shotguns, or component parts that meet the statute's features could face federal criminal exposure if those weapons are used in a mass killing or if a jurisdictional nexus is established.
The Attorney General's delegated rulemaking authority could expand the set of covered weapons without new legislation, creating regulatory uncertainty for gun owners, manufacturers, and small businesses.
Retailers, hobbyists, and small manufacturers could face legal and economic risks because accessories or devices that increase rate of fire might be treated as criminalized items without clear guidance.
Based on analysis of 5 sections of legislative text.
Creates a federal offense for mass killings with certain machineguns/semiautomatic weapons, expands DOJ reporting on these cases and material-support cases, and requires DOJ incident cost reports.
Introduced June 30, 2025 by Seth Moulton · Last progress June 30, 2025
Creates a new federal crime for mass killings committed with machineguns, destructive devices, or defined “covered semiautomatic weapons” that kill three or more people in a single incident when federal jurisdiction applies, and sets penalties up to life imprisonment. Requires the Attorney General to (1) identify and be able to add substantially similar weapon types by rule, (2) publish annual DOJ reports listing cases charged under the new offense and under the material-support statute, and (3) publish an incident cost-and-response report within 180 days after DOJ files charges under the new offense. One statutory amendment text was omitted in the provided summary, leaving that part unclear.