Printed from https://fiscalreceipts.com/program/1250/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Trident II Mods
Watch this program
Budget figures
$2.58B discretionary + $62.0M one-time reconciliation. Discretionary change vs FY2025 enacted: +43.9%.
Two official figures, one label— reconciled below
Fiscal Receipts uses P-1/R-1 workbook total obligation authority (TOA) as the headline figure sitewide. The workbook TOA includes budget rows that the R-2/P-40 J-book program line excludes — advance procurement in an ordinary year, and in FY2026 the one-time reconciliation appropriation as well. Each row below names the one it is. How the two bases relate →
FY26 Request · $2.64B TOA − $2.58B J-book line = 62.0M (2,644.0 − 2,582.0 = 62.0) — $62.0M of one-time FY2026 reconciliation money accounts for this gap — not advance procurement
Figures in the sentence are rounded for reading; the parenthesised arithmetic is the same subtraction in USD millions, at the precision where it closes.
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 | $1.28B |
| FY25 | $1.79B |
| FY26 | $2.64B |
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 | $1.12B | $1.13B | $1.28B | ||
| Enacted | – | $1.13B | $1.28B | $1.79B | |
| Request | – | – | $1.28B | $1.79B | $2.64B |
blank = series not published for this year; – = absent from that edition.
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 — TRIDENT II Mods
To maintain a strong strategic deterrent, the US Navy modernized the TRIDENT II (D5) missiles to the D5LE version, enhancing submarine survivability with increased range, minimizing costs by maximizing payload, and adding hard target kill capability for deployment on OHIO and COLUMBIA -class submarines. However, with D5LE electronics nearing obsolescence by FY 2039, the TRIDENT II D5 Life Extension 2 (D5LE2) program will utilize a Strategic Systems Programs Alteration (SPALT) approach to modernize the existing D5LE weapon system, specifically refreshing the electronics and addressing component obsolescence and inventory shortages to ensure the continued effectiveness of the US sea-based nuclear deterrent. The TRIDENT II Mods Budget Line Item 1250 budget is broken into three P-5 exhibits: (1) The D5 Life Extension (D5LE) program funds re-entry body Joint Fuze Sustainment, the guidance system SPALT kits program, procures missile electronics packages (Flight Control Electronic Assembly, Missile Inverter, Command Sequencer, and Interlocks) and production support. (2) The Operating and Support Costs program funds efforts associated with the sustainment of TRIDENT II (D5) and the converted D5LE missiles to include Warhead Components, Mk4B Shape Stable Nose Tip (SSNT), refreshes and replacement of D5 legacy tooling and test support equipment, system integration and planning efforts, Supportability Modifications/Strategic Programs Alteration (SPALT) Insertion, replacement of aging rocket motors, replacement of aging electronic components, guidance system parts, O/S Production Support, and the DOD/DON initiative of Industrial Base Sub-Tier Recapitalization - Strategic Solid Rocket Motors (SSRM). (3) The D5 Life Extension II (D5LE2) subprogram, supporting the COLUMBIA-class Submarine, will continue WPN activities on the detailed design and non-recurring engineering efforts critical for the Strategic Weapons Systems (SWS) subsystems (Missile, Guidance, Fire Control, Launcher, Navigation, etc.) to incorporate design impacts driven by system level requirement refinement that have been occurring in the Research, Development Test & Evaluation, Navy Line Item 0101221N, Project 2228. FY 2026 is the last year of D5LE2 RDT&E,N funding. D5LE2 transitions from RDT&E,N system level requirements setting and trade study activities to WPN subsystem level evaluations and redesign activities, and production/vendor engagement and startup/restart. These activities leverage the Missile and Guidance Technology RDT&E,N efforts to inform subsystem level design concepts. The refinement of design concepts and the evaluation of subsystem level requirements are critical activities following the SRR in FY 2025 and subsequent subsystem System Requirement Reviews (SRR). The D5LE2 acquisition and funding strategy is directly modeled after the successful strategy utilized for the life extension of the D5 SWS (D5LE). Like D5LE, D5LE2 will be accomplished using the Strategic Systems Programs Alteration (SPALT) approach which incorporates updated and modernized designs into the existing D5 weapon system to address obsolescence issues and inventory shortages. This approach is enabled by the fact that a significant percentage of D5LE components are still producible. Those items that can no longer be produced in the same fashion or that have older technologies that do not exist today are being redesigned to address obsolescence, subsequently removing constraints which deter the ability to access existing system margin or cause lengthy technology insertion timelines. D5LE2 WPN non-recurring efforts are for engineering activities or related manufacturing efforts applied to the TRIDENT II missile system to extend its useful military life while maintaining the current performance envelope in the face of a dynamic threat environment. Constraining the major design elements of the SWS, coupled with the decision to confirm the TRIDENT II missile (D5LE and D5LE2) as the weapon of choice for the COLUMBIA platform at its Milestone A and Milestone B decisions, bounds the external interfaces and silhouette of the SWS therefore making modernization of the D5LE SWS as the most effective acquisition approach. FY 2026 D5 Life Extension Costs Include: 1.1.1 Joint Fuze Sustainment: The Joint Fuze Sustainment Program produces parts procured by the National Nuclear Security Administration (NNSA) and the Navy to produce an Arming, Fuzing, and Firing (AF&F) System. The Navy purchases eight components which are delivered as a kit to support final AF&F delivery. Final AF&F kit procurement for D5 Life Extension occurred in FY 2025. 1.1.2 Joint Fuze Sustainment budget includes two categories, (1) Production Engineering/Support and (2) Material/Hardware Procurement. Production Engineering/Support captures non-touch labor at the Department of Energy (DOE) Sandia National Laboratories, DOE Kansas City, and various industry partners. Material/Hardware procurement concluded in FY 2025 but production engineering/support continues in FY 2026 through delivery of the FY 2025 procurements. 2.1.1 Production Support: Funding supports the (D5LE) production system integration efforts used for the processing of weapons systems, restart efforts at Courtland, AL and re-entry production/test requalification costs & restart efforts at Valley Forge, PA. This category funds the Free On Board (FOB) Destination Transportation charges for shipping hardware to government or prime contractor facilities. It also funds costs associated with operational business functions such as product quality assurance of delivered hardware, subcontracts management, program plans & requirements functions, the finance & business operations of contract compliance and performance reports, and Earned Value Management. 3.1.1-3.1.6 Guidance Hardware: The final year of funding in FY 2025 completed the procurement and associated production support of sub-components necessary for a complete Guidance System (GS) which consists of an Inertial Measurement Unit (IMU) and an Electronics Assembly (EA). Within the IMU and EA there are numerous sub-components including the Guidance Circuit Card Assemblies (CCA), inertial sensor (Alternate Pendulous Integrating Gyroscopic Accelerometer (Alt-PIGA), and Interferometric Fiber Optic Gyros (IFOG). These sub-components are required to accomplish the Guidance Hardware Strategic Systems Programs Alterations (SPALT) of the Guidance System assemblies. The SPALT is accomplished at the Integrated Support Facility by upgrading MOD 0 Guidance Systems IMU and EA with CCAs, Alt-PIGAs, and IFOGs, making them MOD 1 Guidance Systems. Funding also supported the Guidance test equipment and test stations' refresh program that is used to identify poor performing and aging/obsolescent Guidance hardware components. The refresh program updates test equipment and test stations to maintain station reliability and availability supporting Guidance test, repair, and production operations. The test equipment refresh program completed a three year refresh in FY 2025. 4.1.1-4.1.5 Fleet Return Missile Electronic Strategic Systems Programs Alterations (SPALT) Kits: Funding provides for the procurement of Missile Electronics Packages and associated production support in order to extend the life of the D5 Missile to align with the OHIO-class life. FY 2026 Operating and Support Costs Include: 1.1 Warhead Components: Funding supports the production of the W76-1/Mk4A Reentry Body (RB) assembly and associated support equipment including RB cabling and RB Shells. Efforts also include Joint Test Assembly (JTA), Alternate Release Assembly (ARA) hardware, and Extended Navy Test Bed (ENTB) production. Lastly, funding supports the Unique Identifier (UID) efforts that allow the Fire Control System to electrically distinguish between W76-1 and W76-2 warheads. 1.2 Mk4B Shape Stable Nose Tip (SSNT): The Mk4B SSNT program is converting RB forward shell assemblies (FSA) from legacy carbon composite nose tips to SSNT in order to provide more consistent and predictable flight performance characteristics of the weapon system. 1.3 Tooling, Test/Support Equipment: Funding provides for the refresh and/or replacement of aging test/evaluation and support equipment experiencing obsolescence that is required for testing of the TRIDENT II D5LE missile and its components. FY 2026 funding supports the procurement of release assembly test console, third stage motor storage transportation equipment, System Instrumentation Test Unit (SITU) test console, Destruct High Voltage Detonator (HVD) simulators and continuing a multi-year refresh for interfacility transportation equipment (IFTE). FY 2026 includes the one-time purchase of additional missile loading tubes, missile erect bridges, third stage motor supports, and various shipping containers and covers. 1.4 Systems Integration/Planning: Funding provides for system component management and integration as well as master schedule oversight and planning, age assessment of components, and Cybersecurity efforts. All lifecycle support efforts for test measurement diagnostic equipment (TMDE) are also funded in this category. 1.5 Supportability Modifications/SPALT Insertion: Funding provides for installation costs for SPALTs which convert D5 missiles to D5LE missiles. This category also funds missile processing efforts that include the hands-on and hands-off support needed to deliver missiles. Support includes radiographic inspection, non-missile production related tasks for mechanics, technicians, production planners and controllers, along with missile system engineers. 1.6 EOP Missile and Guidance Costs: Funding ended in FY 2024. 2.1 & 2.2 Solid Rocket Motors (SRMs) and Post Boost Control Systems (PBCSs): Funding provides for the procurement of SRMs and PBCSs. SRMs required in FY 2026 to support joint OHIO and COLUMBIA patrols beginning in 2030. The lead time of these components necessitates procuring in FY 2026 for delivery in time to meet these strategic requirements. 2.3 Funds HMX procurement for the SRMs and PBCSs. 2.4 Ordnance funding supports requalifying, reproducing, and procuring missile hardware energetic components such as the High Voltage Detonator, Thru Bulkhead Initiators (TBI), Linear Ordnance System (LOS), Post Boost Control System (PBCS) Destruct, Flexible Linear Shape Charge (FLSC), Separation Linear Shape Charge (SLSC), and Third Stage Separation Charge Assembly (TSSCA). These efforts include Lot Acceptance Tests (LAT) conducted by NSWC Crane in support of ordnance production. Ordnance is required for in flight missile stage separations. Prior to FY 2026 the ordnance production facility was transitioning from Santa Cruz, CA to Courtland, AL due to the wildfires which damaged the prior ordnance facility. 2.5 Controls provides for the production of the First Stage Thrust Vector Control (TVC) System Gas Generator and Servoactuator Assembly (SAA). 2.6 "Other" category cost element funds Propulsion Viability efforts that ensure the future viability of propulsion component production. In FY 2026 it also funds Structures (Equipment Section, Interstages, Nose Fairing, Nose Cap, and Conduit Covers) assembly, disassembly, evaluation, certification efforts, and Thermal Impact Protection System (TIPS) Cable Builds and missile installation to ensure sufficient capability to support flight test program. 2.7 Post Boost Control System (PBCS) Requalification: The PBCS Gas Generator (GG) system, designed in the 1980s, requires requalification due to several factors: the outdated design and reliance on aging production equipment create single points of failure, material obsolescence forces the use of new materials and suppliers, and critical energetic components have exceeded their 25-year service life. These issues, coupled with safety concerns associated with deployment on manned platforms, necessitate the requalification, reproduction, and deployment of these components to ensure continued operational safety and reliability. 3.1 Electronics: Funding supports missile electronic components, specifically primary batteries. Primary batteries are continuing to be produced to address aging concerns as they will need to be available until 2049. 5.1 Production Support: This is separate and distinct from the Production Support cost element in the D5LE P5. This cost element supports efforts associated with the missile after it has been delivered to the government along with efforts to support the management of the Production and Deployed Systems Support contract. Funds the production of the Test Missile Kits and the Guidance Handling Cart. It also funds the production support overhead business operations costs of product quality assurance of delivered hardware, subcontracts management, program plans & requirements functions, and the finance & business operations of contract compliance and performance reports, Earned Value Management. 6.1 Guidance Repair Parts: Funding provides for the requalification process and the production of guidance system hardware piece parts that go into the Inertial Measurement Unit (IMU) and an Electronics Assembly (EA). These items are required to sustain the sub-components necessary to support the MOD 1 Guidance Systems. 7.0 Industrial Base Sub-Tier Recapitalization - SSRM: To address a surge in demand that is straining the production capacity and quality of Solid Rocket Motor (SRM) suppliers, the Industrial Base Sub-Tier Recapitalization (SSRM) initiative utilizes a phased investment plan from FY 2024-2028 to modernize the SRM industrial base. This recapitalization focuses on improving process technology, techniques, and tooling to current industry standards, aiming to enhance predictability, quality, throughput, and cost-effectiveness while minimizing disruption to ongoing production. By strategically addressing critical constraints and rate efficiency opportunities across five cost elements, this initiative seeks to establish a credible and affordable SRM production capability to support DoD programs for the next 20+ years. FY 2026 modernization investments include: 7.1 SRM Chamber /Case Modernization: Provides improvements in chamber manufacturing and evaluation of concurrent or alternative capabilities in the Industrial Base to ensure viable capacity to meet the increased demand. 7.2 The SRM Igniter/Nozzle Modernization: Provides recapitalization of tooling for production of solid rocket motor igniter and nozzle tooling at the Promontory production facility which is necessary to meet DOD throughput requirements to support OHIO and COLUMBIA needs as well as to reduce scrap and rework due to antiquated processes and tools that have become bottlenecks to production throughput and capacity. 7.3 SRM Propellant/Energetics Modernization: Provides manufacturing to include full scale static test asset procurement and testing for requalification of insulation material. 8.1 Missile Industrial Facilities: In FY 2026 funding transfers from Line Item (LI) 1350 to LI 1250 to allow flexibility that would foster innovation and promote efficiency. PE/BLI consolidation meets the DoD Implementation Plan from the Commission on PPBE Interim Report. Funding provides for capital maintenance projects at Navy-owned Naval Industrial Reserve Ordnance Plants (NIROPs) at Sunnyvale, California, Santa Cruz, California, and Bacchus, Utah in support of the Fleet Ballistic Missile program. The Sunnyvale facility consists of 49 acres of land and 10 buildings. The Santa Cruz facility consists of 271 acres of land and 29 buildings. The Bacchus facility consists of 583 acres and more than 130 buildings and more than 13 miles of roads. FY 2026 D5 Life Extension 2 (D5LE2) Costs Include: The FY 2026 D5LE2 budget is aligned to the Independent Cost Estimate performed in July 2023 and the Component Cost Position established in April 2025. Preliminary design efforts began in FY 2023 and continue through the final subsystem preliminary design review (PDR) in FY 2028. FY 2026 includes a ramp up to the program to bolster the specialized workforce and industrial base for modernization and production restart/startup and conduct subsystem level evaluations and redesign activities. Major milestone activities occurring in FY 2026 are described below by subsytem. 1.0 D5LE2 Missile Redesign (Missile Alteration (SPALT) Redesign): FY 2026 D5LE2 Missile subsystem efforts include the completion of concept modeling and the commencement of preparations for Missile Subsystem PDR in 2027. In FY 2026, the program will conduct two events including the missile subsystem requirements review (SRR) and the missile subsystem design review; the program will produce detailed design modeling and simulation for missile subsystems; and the program will prototype high risk area missile level components & subsystems. 2.0 D5LE2 Guidance Redesign: In FY 2026, the program will conduct the System Design Review (SDR) of the Strategic Guidance System (Mk8 Mod 0); continue prototype sensor design and development to support prototype guidance system builds; commence prototype electronic parts procurement; continue hardware-in-the-loop development; and initiate the integration of continued Guidance software development. Additional FY 2026 costs will support activities that continue focused design, trades, and vendor engagement/selection for Strategic Guidance mechanical components and inertial instruments including gimbals, stable members, shock mounts, connectors, torque motors, & slip rings some of which have not been produced since the original acquisition of D5 MK6 Mod 0 Guidance system several decades ago. 3.0 D5LE2 Ship Interface: In FY 2026, the program will commence descriptive & functional modeling for the Fire Control subsystem efforts in addition to initiating the Navigation subsystem PDR. Fire Control: FY 2026 efforts continue to update Fire Control and auxiliary systems, subsystems, hardware, and software. Updates will be supported by documentation detailing modifications to missile and guidance interfaces, along with cybersecurity enhancement. Majority of efforts will be focused on Model Based Systems Engineering (MBSE) activities and developing test equipment in support of early Guidance and Missile interface testing and pad launches. Continues descriptive digital models of the D5LE2 iteration of the SWS Fire Control subsystem design. Additionally, there will be participation in SWS integration support. Launcher: FY 2026 efforts include the production of a launch tube for Engineering Test Facility (ETF) required for testing, completion of knowledge point milestone and preparation for Subsystem Redesign Sufficiency Assessment (SRSA-2; comparable to Preliminary Design Review). Conversion of legacy launcher Technical Data Package to CAD models as record of authority. Navigation: FY 2026 provides milestone reviews to prepare for Navigation PDR and mature modeling and simulation capability, including analysis, design, integration, and tests necessary to allow the Shipboard Navigation Subsystem to operate with the D5LE2 flight vehicle and other D5LE2 shipboard systems. 4.0 System Evaluation: FY 2026 post acquisition-level PDR and subprogram entry at Milestone B includes requirements change management, configuration and information management of program and systems engineering documentation, continued architecture development, and curation of the Descriptive System Model. Activities include integration planning and infrastructure implementation to host simulation-based and physical integration activities, and testing. Implementation of mission and system assurance, safety, and surety efforts as part of the early subsystem design. System engineering activities are required to support subsystem requirements and design activates to ensure future successful integration, prepare for system-level integration and test activities, and prepare for Subsystem Redesign Sufficiency Assessment (SRSA-2; comparable to Preliminary Design Review).
Justification
Justification — TRIDENT II Mods
Funding in the TRIDENT II Mods line is required to continue the procurement of TRIDENT II missiles and currently supports the life-extension of the D5 missile. The FY 2026 request for TRIDENT II Mods includes $2,582,029 thousand of discretionary and $62,000 thousand of mandatory (reconciliation) for a total of $2,644,029 thousand. The reconciliation funding, in conjunction with discretionary funding, provides for capacity expansion of the sea-leg of the nuclear triad. This effort maximizes missile inventory to support continuous production and availability of missiles to meet strategic needs. Of critical importance is the continuous production of limited life large energetics such as the Post Boost Control System (PBCS) and Solid Rocket Motors (SRMs). To achieve these objectives, strategic investments are made to 1) PBCS modernization efforts to improve the sub-tier supply chain by upgrading tooling and processes with modern techniques and materials and by adding an alternative insulation supplier and 2) additional railcars to support the expansion of missile processing capacity at the Strategic Weapon Facilities in Kings Bay, GA (SWFLANT) and Bangor, WA (SWFPAC). In order to optimize SRM inventory between SWFPAC and SWFLANT, additional rail cars are required to transport SRMs, which are large energetics, between the production facility in Utah, SWFPAC, and SWFLANT. Further information for this reconciliation request is provided in Section 20008 (Nuclear) of the Reconciliation Exhibit. 1/ TRIDENT II Mods - D5 Life Extension Program P-5 Detail: The FY 2026 request of $94.372M for the D5 Life Extension (D5LE) Program funds re-entry body Joint Fuze Sustainment, procures the redesigned Guidance System SPALT Kits, and procures missile electronics packages (Missile Inverter, Command Sequencer). These efforts are required to support the extended SSBN hull life for a 14 OHIO-class SSBN TRIDENT II program. 1. Hardware - Joint Fuze Sustainment. Funding decreases as the component procurements in support of the Arming, Fuzing, and Firing System (AF&F) Kits assemblies completed in FY 2025. (Cost element 1.1.1) Production Engineering/Support non-touch labor decreases (-$3.111M) as final AF&F kit components including Radio Frequency Integrated Circuit (RFIC) packaging & production, cables and printing wiring boards complete production. Support continues in FY 2026 through delivery of final production lots. (Cost element 1.1.2) Material costs at Kansas City National Security Campus decreases (-$12.037M) as final material procurement completed in FY 2025. 2. Hardware - Production Support. (Cost element 2.1.1) Production Support Costs decrease (-$18.623M) from FY 2025 to FY 2026 as quantity of D5 Life extension procurement hardware decreases, proportionally decreasing the D5LE share of the support costs, as those costs then move to support Operations and Sustainment Production Support efforts (Cost element 5.1 Production Support). 3. Hardware- Guidance Hardware. Guidance Hardware procurements, assemblies and test equipment completed in FY 2025. (Cost element 3.1.4) Guidance Production Support efforts concluded in FY 2025, cost element is reduced to $0 in FY 2026. (Cost element 3.1.5) Guidance Hardware Strategic Systems Programs Alterations (SPALT) Assemblies concluded in FY 2025, cost element is reduced to $0 in FY 2026. (Cost element 3.1.6) Test Equipment Upgrades concluded in FY 2025, cost element is reduced to $0 in FY 2026. 4. Fleet Return Missile Electronic SPALT Kits. (Cost Element 4.1.2) Missile Inverter costs reduce (-$5.504M) from FY 2025 to FY 2026 due to reduction in quantity from 26 to 20. (Cost element 4.1.3) Command Sequencer costs decrease (-$8.068M) from FY 2025 to FY 2026 as quantity of Command Sequencers decreases from 42 to 31. 2/ TRIDENT II Mods - Operating and Support Costs P-5: The FY 2026 request of $873.363M for Operating and Support Costs funds efforts associated with the sustainment of TRIDENT II (D5) missiles to include Warhead Components, MK4B Shape Stable Nose Tip (SSNT), refreshes and replacement of D5 legacy tooling and test support equipment, Supportability Modifications/Strategic Programs Alteration (SPALT) Insertion, system integration efforts, replacement of aging rocket motors and Post Boost Control Systems, Missile electronic and ordnance event initiation components, production support, Guidance repair parts, and Industrial Base Sub-Tier Recapitalization -SSRM and strategic requirements. (Cost element 1.1) Warhead Components costs increase (+$10.071M) from FY 2025 to FY 2026 due to increased procurement of reentry flight test hardware including Small Reentry Inertial Measurement Unit (SRIMU), Lithium Manganese Dioxide (LiMnO2) flight test batteries, and an increase in quantity of tactical W76-1 and W76-2 UIDs. (Cost Element 1.2) Shape Stable Nose Tip increase (+$6.378M) funds the production of tactical MK4B Nosetip Billets, Machining of Nose Plug, Nose Plug Assembly, Ballast plates, and MK4B reentry body (RB) Cable new build / conversion, procurements and assembly of Mk4B inert heads (IH) assembly and piece parts (Alternate Release Assembly (ARA) hardware, Pyro Cables, Simulator Cables). Increased costs from FY 2025 to FY 2026 to support flight test qualification activities culminating in Initial Operational Capability (IOC) in FY 2027. (Cost element 1.3) The scope of this effort fluctuates annually based upon specific tooling and test support equipment refreshes and procurement needs. In FY 2026, the costs increases (+$80.415M) to support Release Assembly test console, Third Stage motor storage transportation equipment, SITU test console, Destruct HVD simulators and the start of a refresh for interfacility transportation equipment. Support equipment increases in FY 2026 for the one-time purchase of additional missile loading tubes, missile erect bridges, third stage motor supports, and various shipping containers and covers. Additional support equipment directly supports capacity expansion efforts as it enables increased missile handling and transportation needs. Solid Rocket Motors and Post Boost Control System Costs: (Cost element 2.1) Solid Rocket Motors (SRM) Reduces (-$39.886M) as quantity of SRMs procured goes from 15 to 13. (Cost Element 2.2) Post Boost Control System quantities reduce from 13 in FY 2025 to 12 in FY 2026. Increase costs (+$23.095M) is attributed to the Post Boost Control System unit cost increase due to material cost increases and supply chain challenges. The cost of U.S. military grade Titanium has increased due to competing use of the material as a result of the global conflict. Issues with the supply chain occurred when the manufacturer of the case for the PBCS Gas Generators exited the business after 30 years of Fleet Ballistic Missile support. With a lack of other suppliers, the current supplier has significantly higher production costs. (Cost element 2.3) HMX decreases (-$3.223M) due to reduced quantities of SRMs and PBCS GG procured in FY 2025 compared to FY 2026. (Cost element 2.4) Ordnance Separation Linear Shape Charge (SLSC) costs increase (+$4.466M) in FY 2026 as full production resumes for Linear Ordnance Test lines. Prior to FY 2026 the ordnance production facility was transitioning from Santa Cruz, CA to Courtland, AL due to the wildfires which damaged the prior ordnance facility. (Cost element 2.6) Other - Increase (+$2.032M) in costs from FY 2025 to FY 2026 to support Thermal Impact Protection System Cable Builds and Missile Installation to ensure sufficient capability to support flight test program. (Cost element 2.7) Post Boost Control System (PBCS) requalification increase (+$13.800M) efforts are required due to several supplier-level changes. These changes include material modifications in components, the introduction of new suppliers replacing those exiting the market, and updates to manufacturing equipment resulting from obsolescence. Consequently, rigorous requalification is essential to ensure the continued performance, reliability, and safety of the PBCS despite these significant alterations in the supply chain and manufacturing processes. (Cost element 3.1) Electronics increase (+$1.074M) from FY 2025 to FY 2026 due to increased battery supplier costs for materials and rework due to increased challenges sourcing obsolete materials. (Cost element 5.1) Production Support increase (+$21.121M) from FY 2025 to FY 2026 as production of D5LE guidance, joint fuze, and missile production parts ramps down and the costs share of overall program production support costs are transferred to the operations and sustainment efforts from D5LE Production Support efforts (Cost element 2.1.1). (Cost element 6.1) Guidance Repair Parts provides for procurement and qualification of life limited re-use items for repair parts. Increase (+$3.612M) from FY 2025 to FY 2026 due to Mk6 MOD1 Guidance System (GS) transition from production to sustainment. FY 2026 efforts include procurement of hardware necessary to support repairs funded under OMN LI 1D2D including repair of the Electronic Assemblies (EAs), Inertial Measurement Units (IMUs) and GS Sensors. Repair support activities also include failure analysis, processing, quality control of required number of Sensor repairs each fiscal year. This funding provides the fleet with reliable assets updated to the latest Repair & Replace configuration guidance and repair procedures. Industrial Base Sub-Tier Recapitalization - SSRM: (Cost element 7.1) SRM Chamber/Case Modernization efforts increase (+$3.500M) in FY 2026 to address aging and out dated processing and measurement capabilities for large SRM chambers that have become bottlenecks and high-risk operations to capacity and quality. Effort will continue to address process improvements in chamber manufacturing and evaluation of concurrent or alternative capabilities in the Industrial Base to ensure viable capacity to meet the increased demand. (Cost element 7.2) SRM Igniter/Nozzle efforts increase (+$13.000M) from FY 2025 to FY 2026 as planning phase is complete and recapitalization of tooling for production of solid rocket motor igniter and nozzle tooling at the Promontory production facility begins. Tooling improvements are necessary to meet DOD throughput requirements to support OHIO and COLUMBIA needs as well as to reduce scrap and rework due to antiquated processes and tools that have become bottlenecks to production throughput and capacity. (Cost element 7.3) SRM Propellant/Energetics Modernization reduction (-$10.294M) from FY 2025 to FY 2026 as efforts to address aging and out dated processing and tooling for large SRM Propellant manufacturing and Loaded Motor Assembly operations completed. Costs for FY 2026 include full scale static test asset procurement and testing for requalification of insulation material. (Cost element 7.4) SRM Small Motor/Ordnance Modernization reduction (-$34.000M) from FY 2025 to FY 2026 as efforts to address SRM Small Motor Ordnance Modernization at facilities in Courtland and PBCS System Test modernization were completed. (Cost element 7.5) HMX Capacity reduction (-$10.000M) from FY 2025 to FY 2026 as one time efforts to increase HMX capacity concluded. (Cost Element 8.1) In FY 2026 funding (+$8.353M) transfers from LI 1350 to LI 1250 to allow flexibility that would foster innovation and promote efficiency. PE/BLI consolidation meets the DoD Implementation Plan from the Commission on PPBE Interim Report. Capital Maintenance FY 2026 projects at the Bacchus NIROP facilities will replace supervisory control and data acquisition (SCADA) HVAC controls in buildings (59 & 46A); replace 9,500 feet of water main pipeline; replace building utility transformers and switchgear in buildings (4H & 4I); perform caternary lightning protection system updates to buildings (CD4 & 46A) as well as other lighting protection system repairs throughout the NIROP; perform ordnance explosive safety compliance to building power and utility supply connections in building (CD3A); perform hypalon roof membrane replacement on buildings (31 & 14A); replace the motor control center in building (55); replace the plant air compressor in building (54); replace power poles; perform network communication replacement phase 7; repave roads and parking lots; repair walking and working surfaces; perform building interior/exterior painting; as well as perform NIROP emergent capital maintenance and utility replacements. 3/ D5 Life Extension 2 (D5LE2) Program P-5: The D5LE2 FY 2026 WPN activities continue focusing on the detailed design and non-recurring engineering required for Strategic Weapons Systems (SWS) subsystems (Missile, Guidance, Fire Control, Launcher, Navigation, etc.). These activities are critical for incorporating design changes driven by system-level requirements that have been refined in the Research, Development Test & Evaluation, Navy Line Item 0101221N, Project 2228. FY 2026 continues the D5LE2 transition from RDT&E,N System Level requirements setting and study activities to WPN subsystem level evaluations and design activities, and production/vendor engagement and startup/restart. These activities leverage the Missile and Guidance Technology RDT&E,N efforts to inform subsystem level design concepts. Design concepts and subsystem level requirements evaluations are critical to supporting Subsystem Redesign Sufficiency Assessment (SRSA-2) and PDRs. (Cost Element 1.1) Airframe increases (+$26.852M) in FY 2026 are aimed at the completion of preliminary design reviews and initial producability planning efforts. There are several critical efforts to redesign, production requalification, and support of the Missile Airframe inclusive of the Equipment Section, Nose Fairing, Motor Equipment Module, Interstage, and associated parts occurring in FY 2026 including: a) Material Testing: Continue efforts to develop composites that will be used in the program (i.e. graphite fabric, graphite unidirectional, & fiberglass fabric materials). This testing is required to create material cards for design and structural analysis for each of the structural commodities. b) Structural Testing: Begin structure testing for the Equipment Section (ES), Motor Equipment Module (MEM), Nose Faring (NF), and Interstage (IS) commodities. These tests are required to validate the design and structural analysis for the critical load cases such as free hoist, closure impact, surface broach, max flight pressure buckling, etc. as well as small-scale prototype builds for developmental hardware testing. c) Acoustic Testing: Begin vibration and acoustic testing on the ES, IS, MEM and NF. These tests will evaluate the response of the structure to various excitations meant to simulate flight dynamic environments. d) Requalification for Airframe Suppliers: To mitigate future risk in the airframe industrial base, requalification efforts are required for the Conduit Covers, Direct Ship Parts and the Nose Cap. (Cost Element 1.2) Propulsion (+$75.890M) Funding increase is driven by D5LE2 missile development effort associated with boost rocket motors to include expanded propulsion engineering support to complete the missile level planning, data products and conduct the flight subsystem SDR and prepare for flight subsystem PDR. These efforts include survivability evaluation, modeling of functional and physical interfaces. This year also begins the design, development, and builds of the inert special test vehicles: three (3) first stage, three (3) second stage and three (3) third stage that will be used in system development testing. (Cost Element 1.3) Electronics and Avionics (+$115.972M) Funding increases from the previous year in support of electronics hardware and software development required for the technology maturation of D5LE2 Missile Avionics. To support the completion of the upcoming Missile Subsystem PDR, increased FY 2026 efforts focus on completing module-level schematics, critical circuit-level simulations, preliminary derating analysis for power and radiation effects, preliminary worst case analyses, and preliminary package test plan for each avionics package (including Addressable Explosive Foil Initiator (AEFI), Primary Electronics Battery (PEB), Cables and Connector, Communication Network, Missile Test and Readiness Equipment (MTRE), Power Distribution Unit (PDU), Remote Units, Safe Arming and Fuzing Electronics (SAFE), and Umbilical Distribution Unit (UDU)). FY 2026 funding also begins the assembly and test of prototypes of these electronics and avionics packages. (Cost Element 1.4) Controls increases (+$122.103M) The program will increase procurement for several PBCS components and conduct several increased efforts in FY 2026 including: a) Perform hardware design of advance Proportional Integrated Valve Assembly (PIVA), Manifold, and SOV designs for Engineering Developmental Units (EDU). This includes the manufacturing and fabrication of PIVA prototype hardware (to include downselect), Isolation Valve Assembly (ISOVA) Prototype, and Sequence Valve Assembly Risk Reserve EDU hardware. b) Conduct component and subsystem testing of Hot-Fire and SOV Hot gas prototype. c) Refinement of subsystem modeling to integrate resulting data from post-test hardware analysis. d) Procure PBCS components to support component and subsystem testing (to include Integrated Valve Assembly (IVA), Isolation Valve Assembly Manifold Assembly (LH & RH), Vent Valve Assembly (VVA), Sequence Valve Assembly (SVA), and Couupling Hardware) e) Initiate the requalification of critical industrial base suppliers for several components. FY 2026 requalification efforts includes candidate evaluation, down select, and process improvement implementations required to re-establish the production footprint at the commodity supplier and their sub-tier suppliers' facilities. FY 2026 component requalification efforts include First Stage (FS) Thrust Vector Control (TVC) Gas Generator (GG), Second Stage (SS) Thrust Vector Control (TVC) Gas Generator (GG), Second Stage (SS) Thrust Vector Control (TVC) Servo Actuator Assembly (SAA) and the Aerospike. (Cost Element 1.5) Ordnance increases (+$6.670M) to support Missile Subsystem PDR activities to design, develop and test an initiation subsystem, which includes the redesign, production requalification's and support for missile initiation ordnance items and control subsystems inclusive of detonators, initiators, linear shape charges, separation charges, and other associated components. FY 2026 efforts include managing supplier activities for developing the model-based prototype design of the HVD-EFI (high voltage detonator-exploding foil initiation) through Missile Subsystem PDR. (Cost Element 1.6) Test Missile Kit 2 (TMK2) increases (+$52.989M) are driven by prototype hardware development, testing, & model validation, parts model coordination and reduce to two battery designs through Low Rate Initial Production (LRIP). FY 2026 TMK2 increases also include the procurement of antennas, MIL STD piece parts (e.g. switches, transducers), accelerometers, RF cables, connectors and start Engineering Developmental Unit board builds. These increased efforts will define physical and interface details, and modeling physical performance of concepts and technologies in preparation for Missile Subsystem PDR. (Cost Element 1.7) Systems Engineering increases (+$11.369M) for increased requirements updates and development of Level IV specs and below, further interface definition, Configuration & Data Management, Missile System Integration, Flight Sciences analysis /Specialty Engineering (reliability, accuracy, Electromagnetic (EM) effects, survivability, human factors, etc) efforts, and Verification assessments in support of Flight Systems SDR, subsystem SRRs and walk-up to KP-2. FY 2026 efforts will also include action item closure/close out of Flight System Design Review, subsystem System Requirements Reviews, and additional technical and programmatic reviews as applicable. (Cost Element 1.8) Test and Evaluation increases (+$42.415M) efforts include manning and development of software simulations and emulations as well as x-flight unique support equipment requirements. FY 2026 efforts include the development of additional detailed ground test lab activation and maintenance plans; software development focused on LE2 flight performance characteristics and missile dynamic model development that build upon efforts started in FY 2025; and the design, build, and hardware purchases associated with the test consoles required to run the system level test labs known as the Simulated Flight Test Equipment. Design, build, and non-labor hardware purchases in FY26 begin for the test consoles required to run the system level tests. System level test labs are required to allow for system level testing of two design turns (Engineering Development Unit, and Advanced Engineering Development Unit) ahead of Flight CDR in FY32. Additional Test and Evaluation funding will support multiple technical subsystem SDR and PDR design reviews. (Cost Element 1.9) System Assembly increases (+$49.113M) due to required capability needed to ensure the D5LE2 remains executable at SWS Facilities. Some critical efforts needed at the Facilities for D5LE2 execution include the following: Facility Activation Plan development, Facility Equipment requirement (PERL, FMEL) development, Facility Design Criteria development, and a comprehensive Activation Integrated Schedule for the Eastern Range, Strategic Weapons Facility Atlantic (SWFLANT), and Strategic Weapons Facility Pacific (SWFPAC). Facility Engineering and Activation Support includes the critical planning, integration, proofing, and development efforts across the Strategic System Programs Facilities to activate mission essential facility capability needed to execute the D5LE2 program. Increased FY 2026 funding provides for the development and activation planning efforts for SWFPAC Missile Inspection Building and Missile Processing Warehouse. Funding provides for capability activation efforts at the Eastern Range in respects to ETF, Complex 46, and the MACA buildings. Funds pay for activation planning efforts for SWFLANT Missile Assembly Building-3, establishment of a new lab space in Ordnance Plant 1 for SECRET Classified D5LE2 Fire Control Engineering Test System development and sustainment, and facility modifications of Ordnance Plant 3 for SECRET Classified D5LE2 Guidance production and storage. (Cost Element 1.10) Support Equipment increases (+$37.665M) due to the procurement of both electrical and ground test support equipment selected for redesign or pull-though in support of D5LE2. Missile support equipment includes equipment for facility activations, Pad Launch, flight tests and X-Flights. Increases for FY 2026 also include training personnel to support the concept reviews and requirement definition for the D5LE2 Trainer Program, includes the Training and Support Equipment development and Operationalization to include Missile subsystem all-up, sub-subsystem, and component level testers and training for staff and operators. (Cost Element 1.11) Re-Entry Body increases (+$33.770M) which will begin hardware procurement, assembly, and testing of Mk4 and Mk5 test bodies for ground tests as well as pre-test modeling and simulation. FY 2026 increased support funds planned reviews including KP-2, Flight System review, Payload System Specification reviews, and Avionics/Separation Sequence Unit (SSU) reviews. Finally the SSU design, test, and qualification effort for legacy systems ramps up to full support. (Cost Element 2.1) Systems Engineering increases (+$9.560M) to support SWS level reviews and to continue the system concept development toward KP-2 and Guidance Subsystem SFR. This will include Guidance System requirements development and management, architecture development and system trade studies, and maturation of program technical plans and processes. Work will include Systems Engineering efforts for the Guidance Subsystem including subsystem architecture, design, modeling, simulation & analysis, requirements development, and verification and validation. (Cost Element 2.2) Algorithms and Software increases (+$6.254M) to develop the software environments, processes, and standards, to perform software trades including operating system, language selection, and processor support, software and navigation algorithm prototyping, and simulation architecture, includes Algorithms and Software development efforts for the Guidance Subsystem. (Cost Element 2.3) Guidance System Hardware increases (+$15.116M) for continued and increased Guidance subsystem concept development including support for Guidance SFR, processor and memory design development, communications and timing hardware technical maturation, electromechanical and platform control prototype development and demonstrations, and electronics packaging development, includes Guidance System Hardware design, development, and test. (Cost Element 2.4) Radiation Hardened (RH) parts increases (+$8.088M) for continued support of part design activities as key technologies achieve suitable TRL levels to transfer from RDTE funded efforts to detailed design. Efforts including parts requirements and parts model development, maintenance of the initial RH parts list, RH parts characterization and acquisition of prototype parts such low voltage analog parts for test and evaluation. Efforts are critical to establish a viable parts catalog and vender base that supports RH Avionics package design for both the Missile and Guidance Subsystems. Efforts in this area are tightly coupled with the design and production of strategic-grade sensors for the Guidance Subsystem. (Cost Element 2.5) Sensors increases (+$87.875M) is to prepare and complete a Fire Control system preliminary design review (PDR). Prepare and complete a Fire Control subsystem Requirement Review for Data Entry Subsystem (DESS), Display and Control Subsystem (DCSS), Navigation MTRE Interface Subsystem (NMISS), Missile Guidance Interface Subsystem (MGISS), and Spare Guidance Interface Subsystem (SGISS). Develop SWIS requirement with new modeling and simulation capability. Mature new Trajectory and Fratricide algorithm concepts and prototype. Develop Prelaunch concepts to support new Guidance and Missile subsystems. Examine operational safety concerns for the Operational Safety Review (OSR). (Cost Element 2.6) Information Systems/ Data Management (IS/DM) increases (+$2.178M) in support of development of IS/DM Program Plans and refinement of IS/DM requirements. Funding continues the development of IS/DM infrastructure and includes development of Guidance Subsystem Information Systems (IS) and Data Management (DM) systems. (Cost Element 2.7) Test Equipment increases (+$7.604M) for efforts that continue supporting developmental test equipment requirements and refinement of Test Equipment Management Plan (TEMP). FY 2026 funds continue development of test equipment to support prototype testing, and includes Guidance Subsystem test equipment planning, architecture, design, and development. (Cost Element 2.8) Integration and Test increases (+$4.217M) in support of Integrated Test program planning, continue requirements verification planning, and test facilities development, includes Guidance System integration, test, and evaluation. FY 2026 funds the LE2 next generation (MK8) Prototype Development Unit (PDU) Integrated Avionics Package (IAP) hardware demonstrations and software simulation activity to support the virtual integration of the Guidance System. (Cost Element 3.1) Fire Control increases (+$53.722M) to evaluate the flowdown impact of system requirements on the legacy and modernized Fire Control shipboard design. FY 2026 evaluation efforts are inclusive of both initial analysis and subsequent design changes necessary to allow the Shipboard SWS Fire Control Subsystem to operate with the D5LE2 flight vehicle and other modernized Shipboard subsystems. In FY 2026, increased funds support the development of test equipment in support of Guidance and Missile interface testing and future pad launches. Additionally, funding supports ongoing Fire Control trade studies on requirement re-allocation and potential avionic architectures. Finally, this effort funds the continued development of descriptive digital models of the D5LE2 iteration of the SWS Fire Control subsystem design. (Cost Element 3.2) Launcher increases (+$8.247M) due to production of a launch tube for the ETF. FY 2026 funds will also complete KP-2 and preparation for Subsystem Redesign Sufficiency Assessment-2 including increased effort in Descriptive System Modeling in support of these milestones. The conversion of legacy launcher Technical Data Package to CAD models as record of authority also happen with the FY 2026 funding. (Cost Element 3.3) Navigation increases (+$0.067M) due to increasing requirements to support subsystem concept development, and functional model development and integration. FY 2026 Navigation introduces new models to D5LE2 based on new environments and characterize existing models outside of their pre-defined state. These models will require higher classification and result in higher costs to enable requirements from STRATCOM. (Cost Element 4.1) System Evaluation increases (+$30.541M) which supports SWS engineering management across all of the subsystems, including: system integration with emphasis on modeling and simulation performance assessment, system verification and validation planning with emphasis on analysis methodologies, event planning, and procedure development, and preliminary evaluations of system and subsystem performance for SRSA-2 and accuracy model coordination with subsystems. FY 2026 increases also support D5LE2 required System Level Test and Evaluation (T&E) efforts. Work products supporting T&E milestones to include defining D5LE2 testing phases and then initial planning for model-based testing and prototype hardware.
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Weapons Procurement, Navy | N | FY24 Actuals | $1.28B |
| Weapons Procurement, Navy | N | FY25 Enacted | $1.79B |
| Weapons Procurement, Navy | N | FY26 Disc. Request | $2.58B |
| Weapons Procurement, Navy | N | FY26 Reconciliation | $62.0M |
| Weapons Procurement, Navy | N | FY26 Total | $2.64B |
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 | $14.2B | $1.28B | $1.79B | $2.58B | $2.58B |
Follow the dollar
Appropriation → program element → top high-confidence awards → recipient families → congressional districts.
Follow-the-dollar covers 312 of 1,938 programs — only high-confidence budget→award links are shown. why coverage is partial? →
The diagram illustrates the cited table below — amounts shown in the diagram are transaction sums per award (no citation chips); the per-district obligations in the table cite USAspending queries.
Related awards
Award linkage is shown for 32 of 200 profiled companies — high- and medium-confidence USAspending matches, each row labeled; medium is the weaker evidence. why partial award coverage? →
Rows marked medium rest on evidence weaker than a program-level match, and of more than one kind. An account-based row, where the award drew from the same appropriation account as this program, is an association, not evidence that this program paid for the contract. Where the evidence is instead an FPDS acquisition-program tag or a subaward description, the program is established but which of its budget lines paid is not. An announcement link a recorded review did not leave standing is medium too. Only high rows rest on the contract naming this program with a recorded review upholding it and no recorded rejection or refutation applying.
Showing 25 of 65 award records (this program's published budget→award crosswalk links — see methodology)
| Recipient | PIID | Confidence |
|---|---|---|
| LOCKHEED MARTIN CORP | N0003014C0100 | high |
| LOCKHEED MARTIN CORP | N0003015C0100 | high |
| LOCKHEED MARTIN CORP | N0003016C0100 | high |
| LOCKHEED MARTIN CORP | N0003017C0100 | high |
| LOCKHEED MARTIN CORP | N0003018C0100 | high |
| LOCKHEED MARTIN CORPORATION | N0003019C0100 | high |
| LOCKHEED MARTIN CORPORATION | N0003020C0100 | high |
| THE CHARLES STARK DRAPER LABORATORY, INC. | N0003017C0008 | high |
| THE CHARLES STARK DRAPER LABORATORY, INC. | N0003021C0008 | high |
| THE CHARLES STARK DRAPER LABORATORY, INC. | N0003023C6008 | high |
| AERO THERMO TECHNOLOGY, INC | N0003008C0030 | medium |
| ATK LAUNCH SYSTEMS LLC | N0003019C0038 | medium |
| BAE SYSTEMS TECHNOLOGY SOLUTIONS & SERVICES INC. | N0003017C0001 | medium |
| EBENEZER RAILCAR SERVICES, INC. | N0016418FG057 | medium |
| EMCUBE INC | N0003017C0018 | medium |
| EMCUBE INC | N0003020C0009 | medium |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. | N0003014C0005 | medium |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. | N0003016C0005 | medium |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. | N0003020C0005 | medium |
| INTERMAT | N0003014C0008 | medium |
| JRC INTEGRATED SYSTEMS, LLC | N0003021C1006 | medium |
| L3HARRIS INTERSTATE ELECTRONICS CORPORATION | N0003016C0040 | medium |
| L3HARRIS INTERSTATE ELECTRONICS CORPORATION | N0003018C0001 | medium |
| LOCKHEED MARTIN CORP | N0003006C0100 | medium |
| LOCKHEED MARTIN CORP | N0003007C0100 | medium |
Contractor concentration
High-confidence award links only, pooled across ingested years. The index uses positive obligations; program obligations are net of deobligations. The figures over every published link, including medium-confidence ones, are in the downloadable warehouse, not on this page — why.
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 Trident II Mods. No program-specific GAO finding for this line is in the ingested data. See the DOD oversight record.
Program dossier
Every sentence below carries its citation — warehouse figures open the citation panel, news claims link the cached source.
Research dossiers exist for 50 of 1,938 programs — the 50 largest fully J-book-detailed programs by FY2026 request. why no dossier here? →
What it is
- Trident II Mods (Budget Line Item 1250) is a U.S. Navy program that funds modifications and life-extension work on the TRIDENT II (D5) submarine-launched ballistic missile — the sea-based leg of the nation's nuclear deterrent, carried on OHIO-class and future COLUMBIA-class submarines.
- The program modernizes TRIDENT II (D5) missiles to the D5LE (D5 Life Extension) version, which enhances submarine survivability with increased range, maximizes payload to minimize costs, and adds hard-target-kill capability.
- Because the D5LE electronics are expected to become obsolete by fiscal year 2039, a follow-on program called D5 Life Extension 2 (D5LE2) will refresh the electronics and address component obsolescence and inventory shortages to keep the sea-based deterrent effective.
- The budget line is organized into three parts: the D5 Life Extension (D5LE) program, the Operating and Support Costs program, and the D5 Life Extension II (D5LE2) subprogram supporting the COLUMBIA-class submarine.
- Program funding currently supports continued procurement of TRIDENT II missiles and the life-extension of the D5 missile.
Why it matters
- The fiscal year 2026 request for Trident II Mods totals $2,644,029 thousand (about $2.6 billion), made up of $2,582,029 thousand in discretionary funding and $62,000 thousand in mandatory (reconciliation) funding.
- The full fiscal year 2026 request is recorded at $2,644,029 thousand in the Weapons Procurement, Navy account.
- The $62,000 thousand reconciliation request is intended to help expand capacity of the sea-based leg of the nuclear triad and to maximize missile inventory for continuous production and availability.
- By comparison, actual spending in fiscal year 2024 was $1,284,705 thousand (about $1.28 billion), meaning the fiscal year 2026 request represents a substantial increase over two years earlier.
- The fiscal year 2025 enacted amount was $1,793,867 thousand (about $1.79 billion), showing a rising funding trajectory into the fiscal year 2026 request.
- The reconciliation funding is tied to keeping limited-life large energetics — such as the Post Boost Control System (PBCS) and Solid Rocket Motors (SRMs) — in continuous production, and to adding railcars that expand missile processing capacity at Strategic Weapon Facilities in Kings Bay, Georgia and Bangor, Washington.
- Fiscal year 2026 is the last year of RDT&E (Research, Development, Test & Evaluation) funding for D5LE2, as that subprogram transitions from system-level requirements work to subsystem-level redesign and production/vendor startup activities.
Key players
- The program is run by the Navy (organization code N) and is funded through the Weapons Procurement, Navy account.
- The Joint Fuze Sustainment Program produces parts procured by the National Nuclear Security Administration (NNSA) and the Navy, with production engineering and support labor at the Department of Energy's Sandia National Laboratories and Kansas City facility along with various industry partners.
- Production support work involves restart efforts at Courtland, Alabama and re-entry production/test requalification and restart efforts at Valley Forge, Pennsylvania.
- Solid rocket motor igniter and nozzle tooling recapitalization takes place at the Promontory production facility to meet OHIO and COLUMBIA throughput requirements.
- Capital maintenance projects are funded at Navy-owned Naval Industrial Reserve Ordnance Plants (NIROPs) in Sunnyvale, California, Santa Cruz, California, and Bacchus, Utah, in support of the Fleet Ballistic Missile program.
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 · O394
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 · O401
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 · O404
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.