Guide
What are the steps of FMS case development?
The builds the in , clears releasability and waivers, and posts the milestone. 's Case Writing and Development Division then writes and staffs the document, reviews it, and countersigns it so the can offer it.
What are the steps of FMS case development?
To initiate case development, the country director tasks preparation of the using . Every case has an assigned case manager, and it is normally the case manager who has primary responsibility for the overall content.
For major system sales, the case manager must coordinate with program managers and item managers to determine the line items to be included on the case to meet requirements identified in the international partner’s . Cost and availability estimates are developed for all articles and services included in each line. These estimates may be based on current DoW inventories or on information from U.S. defense contractors. personnel also prepare notes that pertain specifically to the lines and case being developed. If the international partner has requested any waivers, the will staff the waiver request(s) and ensure it is appropriately reflected in the case.
During case development, the will construct a separate line item for each generic category of materiel or services to be provided. The will assign the appropriate materiel number to each line item. The complete materiel , which is substantial, resides in . Key elements of the data include generic codes, numbers, and descriptions.
In addition to the , 's Case Writing and Development Division ( (IOPS/GEX/CWD)) plays a key role in case development. When the has completed the process and its quality review of the package, it will post the MILDEP approval () milestone in , which moves the document from “Development” to “Write” status in and creates a case record on their respective case-tracking system for offline documentation to be uploaded for transmission to (IOPS/GEX/CWD). C5.6.11.3 describes the documents and information the must provide (IOPS/GEX/CWD), along with the draft for document writing. (IOPS/GEX/CWD) then completes the writing process by accomplishing a quality review for policy compliance and by adding the and the standard notes. After finalizing the document, (IOPS/GEX/CWD) staffs it for the , headquarters , and legal reviews as appropriate. When this coordination process is complete, (IOPS/GEX/CWD) adds the to the daily List for 's review and approval. Once approves, electronically countersigns the , indicating that the can sign the case and officially offer it to the international partner.
References
SAMM
- SAMM C5.6.9.1 — Case Development Status.
- SAMM C5.T12 — General Rough Order of Magnitude, Price and Availability, and Letter of Offer and Acceptance Preparation Responsibilities
- SAMM C5.6.11.1
- SAMM C5.6.11.8.1
- SAMM C5.T13 — Letter of Offer and Acceptance Preparation Milestones
- SAMM C5.T9 — Case Development Categories and Standards
- SAMM C5.T20 — Releasability Requirements Before 36(b) Congressional Notification and Before Letter of Offer and Acceptance Offer
Related
Implementing Agency (IA)
The military department or defense agency responsible for the execution of military assistance programs. With respect to FMS, the military department or defense agency assigned responsibility by the Defense Security Cooperation Agency to prepare an LOA and to implement an FMS case. The implementing agency is responsible for the overall management of the actions that will result in delivery of the materials or services set forth in the LOA that was accepted by a foreign country or international organization.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Letter of Offer and Acceptance Data (LOAD)
Data required to develop a Letter of Offer and Acceptance.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
DSAMS — Defense Security Assistance Management System
SAMM Acronyms, as of 12 September 2026
Glossary entry →Defense Security Assistance Management Systems (DSAMS) →
DSCA — Defense Security Cooperation Agency
SAMM Acronyms, as of 12 September 2026
Glossary entry →Defense Security Cooperation Agency (DSCA) →
Weapon System
A combination of one or more weapons with all related equipment, materials, services, personnel, and means of delivery and deployment (if applicable) required for self-sufficiency.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
LOA — Letter of Offer and Acceptance
SAMM Acronyms, as of 12 September 2026
LOR — Letter of Request
SAMM Acronyms, as of 12 September 2026
FMS — Foreign Military Sale
SAMM Acronyms, as of 12 September 2026
Military Articles And Services List (MASL)
A catalogue of materiel, services, and training used in the planning and programming of International Military Education and Training (IMET), and Foreign Military Sales (FMS). Separate MASLs are maintained for IMET and FMS training that provides data on course identification, course availability, price, and duration of training.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
MASL — Military Articles and Services List
SAMM Acronyms, as of 12 September 2026
Glossary entry →Military Articles And Services List (MASL) →
Letter of Request (LOR)
The term used to identify a request from an eligible FMS participant country for the purchase of U.S. defense articles and services. The request may be in message or letter format.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Critical Program Information (CPI)
U.S. capability elements that contribute to the warfighters' technical advantage, which if compromised, undermines U.S. military preeminence. U.S. capability elements may include, but are not limited to, software algorithms and specific hardware residing on the system, its training equipment, or maintenance support equipment.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Terms of Sale (Letter of Offer and Acceptance)
Standard descriptions entered by the Implementing Agency on a Letter of Offer and Acceptance (LOA) that indicate when payments are required and how the LOA is financed (e.g. cash, Foreign Military Sales credit, etc.).
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
OED — Offer Expiration Date
SAMM Acronyms, as of 12 September 2026
Nonrecurring Costs (NC)
Costs funded by a Research, Development, Test, and Evaluation appropriation to develop or improve a product or technology either through contract or in-house effort. NC also includes one-time costs incurred in support of previous production of a specified model and costs incurred in support of a total projected production run. See "Nonrecurring Production Costs" and "Nonrecurring Research, Development, Test, and Evaluation Costs."
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
P&A — Price and Availability
SAMM Acronyms, as of 12 September 2026
Rough Order of Magnitude (ROM) (Foreign Military Sales)
The Implementing Agencies’ (IAs) response to a Foreign Military Sales Letter of Request for P&A. It is an initial, non-binding cost estimate intended for planning and feasibility assessment, giving the foreign government or international organization (partner) a general idea of the potential cost and availability of defense articles or services. Furnishing this data does not constitute a commitment for the USG to offer for sale the articles and services.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
SAMM — Security Assistance Management Manual
SAMM Acronyms, as of 12 September 2026
Glossary entry →Security Assistance Management Manual (SAMM) →
AECA — Arms Export Control Act
SAMM Acronyms, as of 12 September 2026
Payment Schedule
List of dollar amounts and when they are due from the foreign customer. The payment schedule is included in the Letter of Offer and Acceptance (LOA) presented to the customer. After acceptance of the LOA, the payment schedule generally serves as the basis for billing to the customer. Changes in the estimated costs of an Foreign Military Sales case may require changes in the accompanying payment schedule.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
CTS — Case Tracking System
SAMM Acronyms, as of 12 September 2026
MDE — Major Defense Equipment
SAMM Acronyms, as of 12 September 2026
Major End Items
Any end item that is Significant Military Equipment or Major Defense Equipment or where control over the programming of these items is required. See also "end item."
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Security Assistance (SA)
A group of programs authorized by federal statutes by which the United States provides defense articles, military training, and other defense-related services by grant, lease, loan, credit, or cash sales in furtherance of national policies and objectives, and those that are funded and authorized through the Department of State to be administered by Department of Defense/Defense Security Cooperation Agency, which are considered part of security cooperation.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Military Department (MILDEP)
One of the departments within the DoD created by the National Security Act of 1947, as amended. The Military Departments are: the Department of the Air Force, the Department of the Army, and the Department of the Navy.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Letter of Offer and Acceptance (LOA)
The legal instrument used by the USG to transfer itemized defense articles, defense services, and design and construction services to foreign partners.
When used under the authorities provided in the Arms Export Control Act for Foreign Military Sales, the LOA is a binding agreement signed by the USG and the foreign partner to transfer such articles and services.
When used under Building Partnership Capacity (BPC) authorities, the BPC LOA is not signed by the Benefitting Partner.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Defense Integrated Financial System (DIFS)
A financial system providing DoD-level financial management functions for the security assistance (SA) program. This includes centralized Foreign Military Sales (FMS) trust fund accounting, foreign customer billing, and financial management reporting. DIFS consolidates FMS data from the Army, Navy, Air Force, and other implementing agencies, and provides efficient accountability for oversight of the financial and program management aspects of SA.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Initial Deposit
Funds that are required to cover outlays and/or deliveries that are anticipated to occur before the receipt of the first quarterly payment. These funds must accompany the accepted Letter of Offer and Acceptance.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Cooperative Logistics Supply Support Arrangements (CLSSA)
Military logistics support arrangements designed to provide responsive and continuous supply support at the depot level for U.S.-made military materiel possessed by foreign countries and international organizations. The CLSSA is normally the most effective means for providing common repair parts and secondary item support for equipment of U.S. origin that is in allied and friendly country inventories.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
CLSSA — Cooperative Logistics Supply Support Arrangement
SAMM Acronyms, as of 12 September 2026
Glossary entry →Cooperative Logistics Supply Support Arrangements (CLSSA) →