The Stopping Border Surges Act modifies federal immigration law in several significant ways affecting how families and asylum seekers are processed at the border. First, it changes detention policy by allowing the Department of Homeland Security to detain families together during immigration proceedings and removes state authority to impose licensing requirements on federal immigration detention facilities holding children. Second, it raises the standard for asylum applicants at the border by requiring officers to determine that it is "more probable than not" that an applicant's statements are true before they can proceed with a formal asylum application, effectively requiring border officers to evaluate full asylum eligibility rather than just credible fear of persecution. Finally, the bill makes technical corrections to clarify the roles of the Secretary of Homeland Security and Attorney General in asylum adjudication procedures. The legislation does not specify particular funding levels or implementation timelines in the sections provided.