Bills · HR 4257
IN COMMITTEE· 119TH CONGRESS
House BillHR 4257Crime and Law Enforcement
End Domestic Terrorism Act
INTRO JUN 30· LAST ACTION JUN 30
READING
6MIN
COSPONSORS
1
READER REACTIONS0 TOTAL
NO VOTES YET · BE THE FIRST
- Introduced only
LEGISLATIVE PROGRESS
STEP 2 / 8Introduced
In Committee
Reported
Passed House
Passed Senate
Conference
To President
Became Law
WHAT THE BILL DOES
AI-writtenThis bill matters because it establishes a specific federal charge and severe penalty for mass killings using powerful firearms, aiming to ensure consistent and rigorous prosecution of such acts. By clearly defining the crime and its federal jurisdiction, it provides a direct legal tool for federal authorities to address these devastating events, potentially leading to stronger deterrents and more uniform justice nationwide.
If this bill becomes law, it would increase transparency around mass killings through new public and congressional reporting requirements, offering valuable data on the scope, impact, and individuals involved in these crimes. This information could help inform future policy discussions on public safety and gun violence. Without this bill, mass killings would continue to be prosecuted under existing federal or state laws, which may not always carry the same specific penalties or federal jurisdictional reach, and the proposed data collection and public reporting would not occur.
KEY PROVISIONS
5AI-extractedPROVISION 01
Creates a new federal crime for killing three or more people in a single incident using a machinegun, destructive device, or certain semi-automatic weapons in specific public locations or involving interstate commerce.
This establishes a specific federal legal tool to prosecute and apply severe penalties to those who commit these acts, which could lead to more consistent justice for such crimes.
PROVISION 02
Expands the definition of 'covered semiautomatic weapon' to include rifles and shotguns with specific features, as well as parts designed to accelerate fire rates, and allows the Attorney General to classify 'substantially similar' weapons.
This broadens the scope of weapons covered by the new federal crime, aiming to encompass many firearms often used in mass casualty events.
PROVISION 03
Requires the Attorney General to submit annual reports to Congress with detailed information on individuals charged under the new mass killing offense and existing material support laws, including demographic data and weapon types.
This increases transparency and provides lawmakers with specific data about these crimes and those accused, which could inform future policy decisions.
PROVISION 04
Mandates the Attorney General to publicly report on the Department of Justice website within 180 days of charges being filed for a mass killing, including information on government costs, lost business revenue, and assistance provided.
This provides the public with detailed, timely information about the societal and economic impact of these incidents.
PROVISION 05
Amends the 'providing material support to terrorists' law to include providing support for the newly defined mass killings as a prosecutable offense.
This expands federal authority to prosecute individuals who assist in planning or carrying out such severe acts.
SPONSORSHIP
1 + 1
D· Massachusetts
YRS IN OFFICE
11
BILLS LED
22
COSPONSOR BREAKDOWNBIPARTISAN · 0%
DEM 1 REP 0 IND 0
ACTION TIMELINE
2 EVENTSJUN 30
Introduced in House
JUN 30
Referred to the House Committee on the Judiciary.
BILL INFO
TypeHouse Bill
NumberHR 4257
Congress119th
StatusIn Committee
IntroducedJun 30, 2025
Last actionJun 30, 2025
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IN COMMITTEE· 119TH CONGRESS · JUDICIARY COMMITTEE · INTRODUCED JUN 30, 2025
House BillHR 4257Crime and Law Enforcement
End Domestic Terrorism Act
INTRODUCED JUN 30, 2025· LAST ACTION JUN 30, 2025
PASSAGE CHANCES
—%
READING
6 min
COSPONSORS
1
COMPLEXITY
Moderate
