A steady land-and-water base, with infrastructure surges on top.
The Department of the Interior's budget authority, FY1976– FY2031, from OMB's Historical Tables. The base is a mostly-flat land, water, and science department; what moves the agency-wide line are one-time infrastructure laws riding on top of it — ARRA recovery funding, the IIJA, and the American Relief Act supplementals — which drive the series to its FY2022 peak, well above the surrounding years. This is agency-wide budget authority, not the annual discretionary base.
FY2027 budget authority
—
nominal · OMB estimate · agency-wide
Series peak
—
Series span
—
0 fiscal years
Years parsed
—
contiguous, numeric — self-checked
Interior budget authority — the arc
nominal (current $) · OMB Historical Table 5.2Reading the arc
Interior's underlying budget is remarkably steady — the recurring cost of running the National Parks, public lands, Reclamation's water, the Geological Survey's science, and the trust responsibilities does not swing much year to year. What lifts the agency-wide line are one-time laws layered on top of that base: the FY2009 ARRA recovery funding, the Infrastructure Investment and Jobs Act from FY2021 on, and the American Relief Act supplementals. Those push the series to its FY2022 peak of $46B— infrastructure money flowing through Interior, not a new baseline. A department monitor has to read that correctly and keep this agency-wide budget authority separate from the annually appropriated discretionary base the appropriations view tracks. This series is nominal: OMB's Historical Table 5.2 publishes no constant-dollar basis, and we do not synthesize one.