H.R. 4811 Introduced Crime and Law Enforcement

Cell-Site Simulator Warrant Act of 2025

To amend title 18, United States Code, to regulate the use of cell-site simulators, and for other purposes.

  1. Introduced
  2. Committee
  3. Passed House
  4. Passed Senate
  5. To President
  6. Became law
Sponsor Rep. Lieu, Ted [D-CA-36] Introduced July 29, 2025 Cosponsors 1 (1 R) Latest action July 29, 2025

Summary

Cell-Site Simulator Warrant Act of 2025
This bill establishes a federal statutory framework to regulate the use of cell-site simulators. Cell-site simulators (commonly known as Stingrays) are devices that function as or simulate a cell-phone tower to identify, locate, or intercept transmissions from a cell phone for purposes other than providing ordinary commercial mobile services or private mobile services.
The framework generally prohibits the knowing use of a cell-site simulator domestically by an individual or entity or the use of a cell-site simulator by an element of the intelligence community outside the United States to conduct surveillance of a U.S. person. It imposes a civil fine on an individual or entity that violates the prohibition and restricts the use of unlawfully acquired information as evidence in a legal proceeding or official proceeding.
The framework contains exceptions to permit the use of a cell-site simulator in certain circumstances, such as by a law enforcement agency pursuant to a warrant or by an element of the intelligence community to conduct surveillance under the Foreign Intelligence Surveillance Act of 1978.
Finally, an individual who is the subject of unlawful use of a cell-site simulator may bring a private right of action.

Summary by the Congressional Research Service, Library of Congress.

Congress.gov

Actions

  1. Jul 29, 2025 Referred to the Committee on the Judiciary, and in addition to the Committees on Intelligence (Permanent Select), Armed Services, and Energy and Commerce, for a period to be subsequently determined by the Speaker, in each case for consideration of such provisions as fall within the jurisdiction of the committee concerned.
  2. Jul 29, 2025 Introduced in House

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