Requires federal immigration and health agencies to produce quick reports and provide advance notice when using non‑traditional detention locations, and directs the Government Accountability Office to review those reports and make recommendations. Reports must document incidents such as assaults, sexual assaults, hospital transfers, deaths, and lack of access to counsel, and must be delivered to Congress on short timetables (30, 60, and 90 days after enactment or after receipt of information).

Also requires agencies to give advance written notice before placing people in non‑traditional detention sites, with specific details about location, population, conditions, care, and legal access. The GAO must review the agency reports and notices and issue recommendations to Congress and agencies for improvements.