This extends, through 2034, a federal backstop that helps insurance companies cover massive losses from terrorist attacks—so if a major attack caused huge insurance claims, the government would step in to help cover part of the cost, keeping insurers from collapsing or refusing to sell terrorism coverage. Starting in 2029, the amount of insured losses needed before this government help kicks in would go up, meaning insurers would have to absorb more of the damage on their own before federal money gets involved. The bill also requires the Treasury Department to publicly explain, in a set process, how it decides whether a given attack officially counts as "terrorism" for purposes of triggering this coverage. For everyday people, this mainly affects the stability and availability of terrorism insurance for businesses and property owners, rather than directly changing anyone's individual insurance bill.