Department of Homeland Security: Fiscal Year 2020 Expenditure Plan: U.S. Customs and Border Protection - Procurement, Construction, and Improvements (Fiscal Year 2020 Report to Congress) [open pdf - 784KB]
From the Document: "This report provides an expenditure plan for U.S. Customs and Border Protection (CBP) for Procurement, Construction, and Improvements (PC&I) appropriations enacted in P.L. 116-93 and for prior-year balances as reported at the time that Section 208 was enacted. Those balances were identified to the Appropriations Committees through DHS's submission of its Monthly Execution Report (MER) covering the period through December 31, 2019. Differences in funding amounts are attributable to rounding and accounting updates that have occurred since submission of the MER."
Department of Homeland Security: https://www.dhs.gov/