End Domestic Terrorism Act

HR 4257, the End Domestic Terrorism Act, creates a new federal crime for killing three or more people in a single incident using machineguns or specific types of semi-automatic rifles (called "covered semiautomatic weapons") at designated locations like schools, places of worship, medical facilities, or retail stores. It defines "covered semiautomatic weapons" to include rifles with features like detachable magazines, pistol grips, or folding stocks, as well as AK/AR-style firearms. The law requires prosecutors to file charges under this provision for qualifying incidents, and mandates annual reports to Congress detailing each case, including victim counts, weapons used, and demographic data of those charged. It also requires public reporting of response costs and victim assistance following such incidents.