The Shelter Act aims to promote disaster preparedness by providing tax credits to individuals and businesses that invest in disaster mitigation efforts. The legislation seeks to reduce the impact of natural disasters, such as floods, hurricanes, and wildfires, by incentivizing homeowners and businesses to enhance the resilience of their properties. Key provisions of the Shelter Act include a nonrefundable tax credit for qualified disaster mitigation expenditures, which are defined as expenses related to improving the safety and structural integrity of homes and businesses.