The Expanded Food Safety Investigation Act of 2025 aims to enhance food safety by giving the Food and Drug Administration (FDA) the authority to conduct microbial testing at concentrated animal feeding operations (CAFOs). This is particularly important for investigating foodborne illness outbreaks and addressing public health concerns. The key provisions of this legislation allow the FDA to request access to CAFOs for microbial sampling. This sampling can include testing of animals, plants, water, and the surrounding environment.