The Pandemic and All-Hazards Preparedness and Advancing Innovation Act (PAHPAI) is legislation introduced and passed by the U.S. Congress in 2019 that aims to improve the nation's preparation and response to public health threats, including both natural threats and deliberate man-made threats. A previous bill (with a near-identical name), the Pandemic and All-Hazards Preparedness Act (PAHPA), was signed into law in 2006 and reauthorized in 2013 in order to create a system that prepares for, and responds to, public health threats that could turn into emergencies.