U.S. Customs and Border Protection (CBP) quickly deployed funding for consumables and medical services to address the needs of migrants in its custody along the southwest border, but did not adequately plan to ensure it used fiscal year 2019 funds effectively. Specifically, U.S. Border Patrol’s process did not adequately ensure taxpayer funds were used to purchase items required to meet migrants’ basic needs as Congress intended. Additionally, CBP relied on a single contracting officer’s representative, rather than onsite personnel, to oversee its medical contract because it did not include onsite monitoring when expanding the contract across multiple sectors. We made four recommendations to CBP to improve its consumables reimbursement process and medical contract oversight. CBP concurred with all four recommendations.