To prohibit the obligation or expenditure of Federal funds for disinformation research grants, and for other purposes.

HR 8519 prohibits federal departments and agencies from using government funds for three specific research programs: disinformation research grants, Secure and Trustworthy Cyberspace grants, and the National Science Foundation's Track F program focused on "Trust and Authenticity in Communications Systems." The bill directly affects federal agencies that administer research grants, preventing them from obligating or spending funds on these designated initiatives. It does not alter existing laws or regulations but restricts future funding allocations for these particular research areas. This is a procedural funding restriction, not a policy change affecting the public.