This legislation amends the Federal Fire Prevention and Control Act of 1974 to expand the Assistance to Firefighters Grant (AFG) program, enabling funds to be used for cancer prevention programs for firefighters, including multi-cancer early detection testing. It authorizes $700,000,000 for these grants, with a cap of $1,750 per preventative test. Furthermore, the bill establishes a joint, voluntary program between FEMA and the CDC. This program allows firefighting personnel to share anonymized and de-identified results from their preventative tests with the CDC to identify cancer trends and causes within the community, ensuring personal data protection.