Program and Integration Support IV (PAIS IV)
Ended Master IDIQ Awarded
- Federal agency
-
Chemical Materials Agency
+ 1 more agency
- Awardees
- 4
- Task orders
- 316
- Obligated
- $571,746,875
Vehicle facts
- Opportunity
-
- W911SR06R0003, W911SR05R0033 Solicitation numbers
- Agencies
-
- Chemical Materials Agency Army Materiel Command, Department of Defense
- ACC Aberdeen Proving Ground Army Contracting Command, Department of Defense
- Combined task order value
-
- $580,484,519 Current, with exercised options
- $580,527,773 Potential, with all options
- Last date to order 100% complete
IDV award and task order details come from SAM.gov/FPDS.
About this vehicle
Army Contracting Command Aberdeen Proving Ground awarded this multiple-award Master IDIQ to six prime contractors on December 4, 2006, to provide program and integration support for the Army Chemical Materials Agency Assembled Chemical Weapons Assessment program; ordering closed on October 31, 2013.
The vehicle is effectively inactive for new ordering. Though three small administrative closure delivery orders were issued in April 2026 to resolve contractor invoicing and financial reconciliation, no substantive task orders have been awarded since 2012. The vehicle's last ordering deadline passed nearly 13 years ago. With 98 percent of the $580.5 million combined potential value already obligated and only $8.5 million in remaining capacity, the vehicle serves primarily as an administrative mechanism for closeout of prior commitments to Leidos, Inc., Shaw Environmental, Inc., and the Stem-Tech JV.
When active, the vehicle funded chemical weapons demilitarization program management, logistics support, facility operations, and knowledge management across multiple Chemical Materials Agency disposal and test sites. Task orders ranged widely in ceiling value—from under $50,000 for specialized studies to $13.5 million for facility operations support—with typical durations of 9 to 18 months. Most orders were firm fixed price or cost-plus fixed fee arrangements. All 316 task orders placed under the vehicle were unrestricted competitive procurements with no set-aside designations.
Three entities dominate the award portfolio. Leidos, Inc. received 266 orders totaling $525.5 million in combined potential value, capturing approximately 91 percent of all awards by count and 91 percent by value. Shaw Environmental, Inc. and Stem-Tech JV together account for the remaining awards with substantially smaller shares. The Chemical Materials Agency itself placed 240 of the 316 task orders, representing $399.9 million; Army Contracting Command Aberdeen placed a secondary flow of 55 orders worth $64.4 million. Ordering activity peaked in 2009–2010 (53–55 orders per year) and declined sharply after 2012, reflecting programmatic wind-down of chemical weapons destruction operations.
Description
Program and Integration Support (PAIS) IV IDIQ for the Army Chemical Materials Agency (CMA) Assembled Chemical Weapons Assessment (ACWA) program.
IDV awards
| Awardee | IDV award | Awarded |
|---|---|---|
| Aptim Federal Services, LLC | W911SR07D0007 | |
| Stem-Tech JV | W911SR07D0008 | |
| Leidos, Inc. | W911SR07D0006 | |
| Leidos, Inc. | W911SR07D0001 |
Latest task orders
Show 15 more
Latest 25 of 316 listed here. See the rest on GovTribe.
Top awardees by obligations
| Rank | Awardee | Obligated | Share |
|---|---|---|---|
| 1 | Leidos, Inc. | $247,527,132 | 43% |
| 2 | Leidos, Inc. | $205,975,667 | 36% |
| 3 | Leidos, Inc. | $66,366,014 | 12% |
| 4 | Shaw Environmental, Inc. | $22,680,180 | 4% |
| 5 | Stem-Tech JV | $20,765,421 | 4% |
| 6 | Aptim Federal Services, LLC | $8,432,462 | 1% |
Top funding agencies by obligations
| Rank | Funding agency | Obligated | Share |
|---|---|---|---|
| 1 | Department of the Army | $571,746,875 | 100% |
Obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2026 | $4,065 |
| FY2025 | $7,488 |
| FY2024 | $28,439 |
| FY2023 | $2,340 |
| FY2020 | -$90,922 |
| FY2019 | -$337,180 |
| FY2018 | -$1,439,587 |
| FY2017 | -$1,550,895 |
| FY2016 | -$694,208 |
| FY2015 | -$1,707,652 |
| FY2014 | -$3,210,374 |
| FY2013 | $37,719,862 |
| FY2012 | $77,535,477 |
| FY2011 | $87,694,709 |
| FY2010 | $103,092,501 |
| FY2009 | $94,214,988 |
| FY2008 | $89,577,494 |
| FY2007 | $91,495,530 |
Show all 18
Quick answers
What is the PAIS IV contract vehicle?
Program and Integration Support IV (PAIS IV) is an indefinite delivery, indefinite quantity (IDIQ) contract vehicle run by Chemical Materials Agency (Army Materiel Command) and ACC Aberdeen Proving Ground (Army Contracting Command), awarded on December 4, 2006.
Which companies hold PAIS IV?
4 companies hold PAIS IV's IDV awards, one each. The latest went to Aptim Federal Services, LLC on January 26, 2007. The awardees whose task orders obligated the most are Leidos, Inc., Leidos, Inc. and Leidos, Inc.
How much has been spent through PAIS IV?
316 task orders have been placed under PAIS IV, obligating $571,746,875. Their combined current value, with exercised options, is $580,484,519.
Which agencies use PAIS IV the most?
The departments whose task orders under PAIS IV obligated the most are Department of the Army ($571,746,875).
How much was obligated through PAIS IV in fiscal year 2025?
Task orders under PAIS IV obligated $7,488 in fiscal year 2025.
On GovTribe
See this vehicle's full record
- Every IDV award and task order
- Funding by agency, awardee, NAICS and set-aside
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