Responsive Strategic Sourcing for Services (RS3)

Responsive Strategic Sourcing for Services (RS3) is a multiple-award IDIQ contract vehicle managed by the U.S. Army Contracting Command - Aberdeen Proving Ground (ACC-APG), providing professional, technical, and advisory services to Army and other Department of Defense customers.

What is RS3?

RS3 was designed to give Army commands and DoD agencies a fast, flexible vehicle for acquiring a wide range of professional and technical services, including program management support, logistics, intelligence support, language services, financial management, administrative services, and training. The contract is structured in functional areas that map to common service types, and task orders are competed among holders within the relevant functional area. RS3 is available to all DoD components and authorized agencies, making it a broadly accessible vehicle beyond just Army customers. Like other IDIQ vehicles, RS3 allows agencies to skip the lengthy full-competition process and issue task orders directly against the pre-qualified contractor pool. The contract ceiling is large, and the vehicle has supported billions in annual task order spending across DoD. Contractors seeking to serve the defense professional services market view RS3 as a significant vehicle alongside OASIS+ and similar government-wide offerings.

Why RS3 matters for government contractors

RS3 is one of the primary vehicles for professional services contracting within the Army and broader DoD ecosystem. For firms offering advisory, analytical, program support, or technical services to defense customers, holding an RS3 vehicle provides access to a large and steady stream of task order requirements. The multi-functional structure means a single RS3 prime can compete across several different service categories.

Example

A defense consulting firm wins RS3 seats in the program management and financial management functional areas. Army Materiel Command issues a task order for program analysis support on a major acquisition program. The firm submits a targeted task order proposal and wins an 18-month engagement supporting program budget development and milestone reviews.

Frequently Asked Questions

Who can use RS3 to place task orders?

RS3 is primarily for Army commands, but DoD components and other authorized agencies can also order under the vehicle. The contracting officer at ACC-APG determines whether a specific agency's requirement falls within the vehicle's scope.

How are RS3 task orders competed?

Task orders are competed among all RS3 holders within the relevant functional area. The agency issues a task order request for proposal (TORFP), holders respond, and the contracting officer evaluates and selects based on the stated evaluation criteria, which vary by task order.

Does RS3 have a small business track?

RS3 includes provisions for small business participation, and some task orders may be set aside for small businesses among the RS3 holder pool. Firms should review the contract's ordering guide and monitor individual task order solicitations for set-aside designations.

How does RS3 compare to OASIS+?

OASIS+ (managed by GSA) is a broader, government-wide professional services vehicle, while RS3 is Army-managed and more DoD-centric. Firms targeting Army-specific work often find RS3 relationships more directly productive, while those with a wider civilian agency footprint may prioritize OASIS+.