Printed from https://fiscalreceipts.com/program/2237/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
SURTASS
Budget figures
FY2026 award data is a partial year — USAspending reports awards on a rolling basis, and this corpus runs through 2026-09-04. why partial FY2026 data? →
Budget trajectory
| Fiscal year | Amount |
|---|---|
| FY24 | $33.9M |
| FY25 | $46.0M |
| FY26 | $31.2M |
All series figures: P-1 TOA · PB2026
Decade view
P-1/R-1 workbook TOA basis, shown compact in $B/$M (the workbook records USD thousands); each figure cites its own President's Budget edition
The vertical scale does not start at zero: the baseline sits just below this program’s smallest year, so a low point on this line is not a small amount. Read the shape for direction and the grid below for the figures.
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|
| Actuals | $67.5M | $25.0M | $33.9M | ||
| Enacted | – | $25.0M | $33.9M | $46.0M | |
| Request | – | – | $33.9M | $46.0M | $31.2M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $33.9M for FY2024; the PB2026 book reported $33.9M as actual total obligation authority — $23.0K below the request. 33.9 − 33.9 = -0.0 USD millions — the compact figures above are rounded for reading.
Program lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Description — SURTASS
PROGRAM COVERAGE: Surveillance Towed Array Sensor System (SURTASS) is the mobile, tactical, and strategic arm of the Navy's undersea surveillance capability that provides deep ocean and littoral acoustic detection and cueing for tactical weapon platforms against diesel and nuclear submarines as well as surface vessels in any given Area of Operations worldwide. Dedicated Anti-Submarine Warfare (ASW) T-AGOS ships tow long acoustic arrays that collect acoustic data and relay that data to shore facilities via satellites for processing and fusion of the resulting contact data with other sensors. Currently, there are five Small Waterplane Area Twin Hull (SWATH) Passive (P)/Active (A) T-AGOS ships operating in the Pacific area. Ship configurations are: T-AGOS 22 USNS LOYAL (1), a SWATH-P platform which supports passive operations using the TB-29A Twinline (TL-29A) array, providing improved detection and classification capability. This ship class uses the Integrated Common Processor (ICP) signal processing and display system common with the SSN Acoustic Rapid Commercial Off the Shelf (COTS) Insertion (ARCI) Sonar Processing System; Three (3) T-AGOS SWATH-P platforms, T-AGOS 19 USNS VICTORIOUS, T-AGOS 20 USNS ABLE, and T-AGOS 21 USNS EFFECTIVE, supporting passive/active operations, configured with the ICP processing and display system, the TL-29A array, and the Compact Low Frequency Active (CLFA) transmit capability; One (1) Low Frequency Active (LFA) equipped ship, T-AGOS 23 USNS IMPECCABLE, a SWATH-A platform configured with the ICP processing and display system, the TL-29A array, and the Low Frequency Active (LFA) transmit capability. The active capability provides greatly improved detection against diesel submarines as well as the quiet nuclear submarine threat. In addition to the five platforms described above, two (2) shore sites are configured with the ICP processing and display suites to receive the T-AGOS acoustic data via Super High Frequency (SHF) satellite communication links. One of the two shore sites is equipped with three (3) SURTASS Team Trainers (STTs) to support Home Port Training Periods. A cost sharing agreement with Japan also provides two (2) shore sites and four (4) Japanese SWATH ships with similar capability to the T-AGOS SWATH-P ships for the Western Pacific region. Funding supports the U.S. cost share for the procurement of Towed Arrays for the new J-AOS-4 ship. The Expeditionary Surveillance Towed Array Sensor System (SURTASS-E) provides a SURTASS passive capability packaged in ISO-Vans (ISO-International Organization for Standardization) for mobilization on Vessels of Opportunity (VOOs). It was developed as a Rapid Prototyping, Experimentation, and Demonstration (RPED) project, tasked to re-package, test, and demonstrate an expeditionary variant of the passive component of the SURTASS acoustic surveillance system that can be used as a surrogate for some of the SURTASS capabilities provided by traditional T-AGOS class vessels. [P40A / SURTASS-E Array]: The Expeditionary Surveillance Towed Array Sensor System (SURTASS-E) provides a SURTASS passive capability packaged in ISO-Vans (ISO-International Organization for Standardization) for mobilization on Vessels of Opportunity (VOOs). It was developed as a Rapid Prototyping, Experimentation, and Demonstration (RPED) project, tasked to re-package, test, and demonstrate an expeditionary variant of the passive component of the SURTASS acoustic surveillance system that can be used as a surrogate for some of the SURTASS capabilities provided by traditional T-AGOS class vessels.
Justification
Justification — SURTASS
FY26 funding amount of $31.169M consists of $12.516M in funding for Integrated Common Processor (ICP) units, $2.092M for TL-29A towed array refurbishments, $13.892M for procurement of three (3) Surveillance Towed Array Sensor System (SURTASS) Team Trainer (STT) systems, and $2.669M for field changes and modifications for transition to upgraded command and control (C2) capabilities. The FY 2026 request was reduced by $1.528 million for Advisory and Assistance Services to promote efficiencies and advance the policies of the Administration in alignment with Executive Order 14222, "Implementing the President's Department of Government Efficiency Cost Efficiency Initiative."
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Other Procurement, Navy | N | FY24 Actuals | $33.9M |
| Other Procurement, Navy | N | FY25 Enacted | $46.0M |
| Other Procurement, Navy | N | FY26 Disc. Request | $31.2M |
| Other Procurement, Navy | N | FY26 Total | $31.2M |
Budget Details(R-2/P-40 facts)
J-book detail basis (R-2/P-40, USD millions) · PB2026 — a different accounting basis from the P-1/R-1 workbook TOA above; where the two disagree, the reconciliation strip under Budget figures shows both.
Wider than this screen — swipe the table sideways for the remaining fiscal-year columns.
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element | $391.3M | $33.9M | $46.0M | $31.2M | $31.2M |
Follow the dollar
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 312 of 1,938 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high or medium confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
Oversight
Department-level designation (not specific to this program)
GAO lists 5 high-risk areas for DOD as a whole. That designation covers the department, not SURTASS. No program-specific GAO finding for this line is in the ingested data. See the DOD oversight record.
Program dossier
No research dossier for this program — dossiers cover 50 of 1,938 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →
Primary sources
Open any budget figure for its exact receipt. Verified line items lead with the highlighted government PDF; original spreadsheets download with their budget edition and exhibit in the filename.
Budget totals · TOA sources
FY2026 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O668
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_P-1_Procurement.xlsx.
FY2024 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O652
Complete workbook · unchanged saved copy. Saves as PB2024_DoD_P-1_Procurement.xlsx.
FY2025 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O680
Complete workbook · unchanged saved copy. Saves as PB2025_DoD_P-1_Procurement.xlsx.
Detailed budget justification
The related TOA spreadsheets above use a different accounting basis from R-2/P-40 detail. Their amounts are not assumed to match these detailed sources.
OPN BA1 Book · www.secnav.navy.mil