The Vehicular Terrorism Prevention Amendment Act of 2025 aims to enhance safety and efficiency for temporary road closures during special events in the District of Columbia. The bill mandates the Homeland Security and Emergency Management Agency (HSEMA) to establish clear safety standards for roadway barriers, ensuring that these barriers are capable of stopping vehicles and are covered by federal liability protections under the Qualified Anti-Terrorism Technology designation. The legislation seeks to address the current lack of guidance on barrier effectiveness, which has left residents and visitors vulnerable to vehicular terrorism.

Key provisions of the bill include the requirement for the HSEMA to develop specific barrier standards based on road typology, incorporating safety ratings measured by established crash testing methods. The bill also allows for exemptions for certain types of road closures, such as those related to construction or First Amendment activities, to maintain flexibility for public safety agencies. Overall, the legislation aims to improve public safety during events while reducing the burden on District employees tasked with managing road closures.