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Interagency and International Support

About Interagency Support

The U.S. Army Corps of Engineers (USACE), through the Interagency and International Services (IIS) program, provides a multitude of professional services and technical products to non-Department of Defense federal agencies, state and local governments, tribal nations, private U.S. firms, international organizations, and foreign governments. USACE support can help meet your agency’s program challenges while avoiding duplication of federal capabilities. Under the IIS program, non-Department of Defense agencies are able to access unique support capabilities including regional and national experts from USACE laboratories and technical centers of expertise.

Using ISO 9000 (International Organization for Standardization) certified Project Management Business Processes, we operate as a Regional Business Center where expertise and experience is shared to serve our customers. 

The Great Lakes and Ohio River Division (LRD) includes seven districts located in Buffalo, Chicago, Detroit, Huntington, Louisville, Nashville, and Pittsburgh, serves more than 58 million people, and covers 355,300 square miles over 17 states. 

Although the districts operate within their area of responsibility, each district has the ability to reach out to other LRD and USACE districts, centers of expertise and research laboratories to meet your mission needs. 

What We Do

We have a number of technical and process capabilities available to our federal, state, and local partners. We are committed to working with you to fully understand your needs and in turn, propose the appropriate professional service and technical product to meet your project objectives and requirements. Below is a list of just a few of the services available to meet those needs.  

    • Design and Construction
    • Disaster Recovery
    • Engineering and other Scientific Disciplines
    • Environmental Services/Hazardous and Toxic Waste Remediation
    • Operations and Maintenance
    • Planning
    • Procurement and Contracting
    • Program and Project Management
    • Real Estate
    • Research and Development & Technology Transfer
    • Water Resources

LRD utilizes the talents of in-house staff as well as the private sector to accomplish tasks for other agencies. We have the flexibility to assemble the best possible teams to serve the public interest and specific requirements of our IIS partners. The assistance provided can vary from highly specific technical advice, to detailed planning and design documents, to complete program management services.  

In order to provide the best possible services for your agency, LRD has a wide range of in-house registered professionals – Project Management Professionals, Licensed Professional Engineers, Certified Energy Managers, Certified Wildlife Biologists, Value Engineers, and many more. We also have the ability to access our technical centers of expertise, research laboratories and other divisions nationwide for additional capabilities. Select "Edit Content" from the Edit (Pencil Icon) Action Menu.

What We Bring

USACE supports federal, state, and local partners by complementing their capabilities in the delivery of quality products and services. USACE may even be considered an extension of the staff, often addressing issues that may arise with inherently governmental functions associated with contract acquisitions and/or contractor oversight.

In addition, USACE has the following unique competencies to aid in the delivery of your mission:

    • Provide life cycle project management and related services with a full range of in-house multi-disciplinary capabilities
    • Leverage the resources of multiple partners to provide regionally coordinated solutions to challenges
    • Respond quickly to wide ranging needs throughout the world with flexible staffing, diverse technical capabilities and contracting tools
    • Assemble expandablemultidisciplinary technical teams by leveraging assets and capabilities of other agencies
    • A proven track record of engineering excellence and recognized centers of expertise

Frequently Asked Questions

What legal authority allows USACE to provide services?
USACE can perform work under the IIS program for various agencies in accordance with several different authorities, the most common of which are outlined below:

  • Economy in Government Act [31 USC 1535] – Federal agencies
  • Intergovernmental Cooperation Act [31 USC 6505] – State and local governments
  • Chief’s Economy Act [10 USC 3036(d)] - Federal agencies, state, local, territorial, and tribal governments
  • Federal Technology Transfer Act [15 USC 3710(a)] – Public and private entities

There are other authorities we may be able to use in order to perform services for you. USACE, as part of the Department of the Army, is bound by requirements within these authorities as well as by specific terms and conditions dictated by the Federal Acquisition Regulation (FAR) and Department of Defense Financial Management Regulation (DoD FMR). We will work with you as best we can to meet your needs.

What does USACE charge for its services?
In most instances, agencies or third parties receiving services through the IIS program pay for services on a reimbursable basis. Unlike private industry, USACE does not include profit in the cost estimate. USACE calculates costs based on the scope and schedule of the work and includes costs associated with the technical analysis and administrative management of the project. The funds we receive pay for the costs associated with the necessary contracts, travel, equipment, supplies and labor to execute the work we perform for you. Any funds not utilized by USACE are returned to the owning agency.

How does USACE determine costs for a project? 
USACE performs work based on costs, initially estimated based on the scope of work, schedule for the project, industry standards, and common business practices. The scope, schedule, and budget are developed in close collaboration with the requesting entity and agreed upon prior to the onset of work. Our costs are related to the type of service you request and the complexity of your project.

We develop project budgets in conjunction with you as part of a Project Management Plan (PMP). A PMP is a formal, approved, living document used to define requirements and expected outcomes and guide project execution and control.

The PMP establishes the scope, schedule, and budget for the work to be performed.

We believe that frequent communication is imperative to allow good mutual decisions regarding changes in scope, schedule or budget. USACE is committed to providing you with professional services in the most cost-efficient and effective manner possible. As a premier engineering organization, we can provide services that meet even the most challenging conditions. As such, anything that we can do to increase your understanding of USACE enhances our ability to work more closely with you to determine the correct level of effort needed for each and every project.


As service providers, USACE strives to understand your project goals and constraints. We maintain transparency by vetting and discussing with you potential project risks and cost drivers, such as the size and complexity of the project, period of performance, and special logistical, safety, regulatory and security requirements both before a project begins and as it progresses. We believe open communication allows us to move forward with a common understanding in terms of risk management and the recommended level of oversight.

  • U.S. Army Corps of Engineers
  • Great Lakes and Ohio River Division
    • 513-684-2825
  • Buffalo District
  • Chicago District
  • Detroit District
  • Huntington District
  • Louisville District
  • Nashville District
  • Pittsburgh District
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