§Forecast for FY2026 DHS Title VI USAspending award transaction obligations
The resolver is the registered USAspending spending_over_time POST query, not a budget-account table: the resolving value is the FY2026 aggregated_amount for prime award transaction obligations across the registered DHS Treasury accounts 070-2025/2029-0530, 070-2025/2029-0532, 070-2025/2029-0509, 070-2025/2029-0510, 070-2025/2029-0413, and 070-0722. Public references sometimes describe 070-0722 as a 2025/2034 State Border Security Reinforcement Fund account; I keep the forecast tied to the registered 070-0722 target contract.
Opened USAspending API endpoint documentation and source endpoint metadata for /api/v2/search/spending_over_time/ and award update status.↳ USAspending documents /api/v2/search/spending_over_time/ as POST; /api/v2/awards/last_updated/ returned last_updated = 08/07/2026.Checked USAspending submission-period schedule endpoint for current official reporting cadence evidence.↳ The official submission_periods endpoint showed the 2026-06-01 to 2026-06-30 period with submission_start_date 2026-07-21, submission_due_date 2026-07-31, and certification_due_date 2026-08-15; the registered FY2026 P12 target resolves at the conservative 2026-10-22 bound for the October first-print snapshot.Checked USAspending federal spending guide for transaction-file interpretation.↳ USAspending states Assistance_PrimeTransactions and Contracts_PrimeTransactions rows represent prime award transactions; the guide also lists FY filters from 2008 through 2026 on Advanced Search.Reviewed public OBBA-to-TAFS mapping and reported USAspending-derived obligations for the same DHS account family.↳ The public analysis reported CBP had obligated $11.3 billion, equal to 17% of $64.7 billion OBBA CBP funding, as of December 2025; it also mapped 070-2025/2029-0530 and 070-2025/2029-0532 to CBP OBBA accounts and reported $64.8 billion in those TAFS as of September 2025.Reviewed public account mappings for non-CBP target accounts.↳ The same mapping lists Sec. 90005(a) FEMA-administered state and local assistance at $2.58 billion, Sec. 90005(b)(3) State Border Security Reinforcement Fund at $10.00 billion for 070-2025/2034-0722, and FLETC at $0.75 billion for 070-2025/2029-0509 and 070-2025/2029-0510.Checked OpenOMB public apportionment references for the registered FEMA-related accounts.↳ OpenOMB listed State Border Security Reinforcement Fund TAFS 070-0722 2025/2034 as FY2026 file 11523612 approved Jun 4 2026, and Federal Assistance FEMA TAFS 070-0413 with FY2026 files approved May 21 2026 and May 26 2026.Base rate / reference class: this is a lumpy multiyear appropriation drawdown target. The best outside-view anchor is the already-observed CBP drawdown pace: $11.3 billion in obligations by December 2025 from a $64.7-$64.8 billion account family, with other registered accounts adding smaller but still material grant/reimbursement channels. I do not use a same-series time-series prior because the exact FY2026 Title VI registered-account snapshot is a new policy-funded flow, so earlier fiscal years are not comparable to the FY2026 first-print obligation level.
Prior/update/interval: base prior is the observed CBP drawdown scale, not a direct persistence forecast. Historical/reference sample is $11.3B already obligated on CBP OBBA accounts, $64.8B CBP authority, $10.0B State Border authority, $2.58B FEMA assistance authority, and $0.75B FLETC authority. Adjustment components are CBP awards 15.0B + State Border 6.5B + FEMA assistance 2.3B + FLETC 0.5B + other first-print timing/rounding 0.5B = 24.8B. Interval method is an explicit component-error model for this lumpy first-print flow: CBP procurement uncertainty 4.0B, State Border timing uncertainty 3.0B, FEMA grant uncertainty 0.8B, FLETC uncertainty 0.2B, USAspending first-print reporting-lag uncertainty 1.0B; sigma = sqrt(4.0^2 + 3.0^2 + 0.8^2 + 0.2^2 + 1.0^2) = 5.19B, and 1.28*sigma = 6.64B. Therefore 24.8B +/- 6.64B gives 18.16B to 31.44B.
Upside risk: rapid border-wall, screening-technology, or state reimbursement awards could add more than about $10B beyond the CBP base and push total obligations above 31.44B. Downside risk: procurement delays, low 070-0722 award execution, or October first-print reporting gaps could keep the CBP-plus-grants total below 18.16B, outside the interval.
Review disposition: accepted the critique that cross-sectional account amounts should not be treated as realized volatility; revised the Prior/update/interval step to separate the base prior, fetched reference amounts, additive forecast components, and an explicit component-error uncertainty model. Accepted the suggestion to clarify the 070-0722 versus 2025/2034 reference mismatch while preserving the registered target.