To establish a system to track, record, and report all instances in which a United States citizen or individual lawfully admitted for permanent resident was, for the purpose of immigration enforcement, detained or removed by the Department of Homeland Security, and for other purposes.

H.R. 4703 would require the Department of Homeland Security (DHS) to create a standardized system to track, record, and report every instance in which a United States citizen, an individual lawfully admitted for permanent residence (LPR, i.e., a green card holder), or a person whose LPR status has been briefly revoked (for up to 30 days) was detained for at least 24 hours or removed for immigration enforcement. The system would, to the greatest extent practicable, include cases where a person was apprehended by other federal, state, or local law enforcement and then transferred to DHS for detention or removal, including scenarios involving minors who were removed with a parent or guardian lacking lawful status. The bill also directs DHS (in collaboration with the State Department) to establish a process for individuals to provide information proving their citizenship or LPR status. It requires quarterly reporting to specified congressional committees and sets implementation timelines (a system within 180 days of enactment, plus rulemaking for proof-of-citizenship within 180 days). In short, the bill aims to create a centralized tracking and reporting framework to increase transparency around DHS enforcement actions affecting citizens and LPRs, including cross-agency transfers and sensitive cases involving minors.