Stage 03
Case Development and LOA Preparation in Foreign Military Sales
The 's case manager assembles the in , but the substance comes from the program office: program managers and item managers define the lines and develop the cost and availability estimates behind them. The case then clears the milestone and goes to for writing and approval.
What Happens
LOA data and the program office
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 DOD 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.
As the data is being developed, the case manager and country director should both be alert for issues that may require further coordination, not only within the and other DOD organizations, but also with DOS and other non-DOD agencies. When outside coordination is required, the time required and the level at which it should occur will depend on a number of political, technical, and financial factors. For example, a routine follow-on support case will likely require little or no coordination with organizations outside the . Cases involving more than one proponent MILDEP (e.g., U.S. Navy helicopters with U.S. Army electronics) require coordination across service lines.
Line items and the Total Package Approach
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.
When compiling , case managers should adhere to the policy of in the C4.3.2. ensures international partners are afforded the opportunity to acquire the full complement of articles and services necessary to field, maintain, and utilize major items of equipment efficiently and effectively. To a large degree, depends on receiving a comprehensive . In addition to the itself, a case that follows the concept will address areas such as training, technical assistance, publications, initial support, and follow-on support.
Changes while the case is in development
Writing, review and approval
In addition to the , the Case Writing and Development Division (DSCA-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 the DSCA-CWD. C5.6.11.3 describes the documents and information the must provide DSCA-CWD, along with the draft for document writing. DSCA-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, DSCA-CWD staffs it for the , headquarters , and legal reviews as appropriate. When this coordination process is complete, DSCA-CWD forwards the document to the DOS/PM for final review. Upon DOS concurrence, DSCA-CWD electronically countersigns the , indicating that the can sign the case and officially offer it to the international partner. A more complete description of the and DSCA-CWD roles in the case development process is shown in Table C5.T12 of the .
Key Players at This Stage
Program office
- Weapon System Program OfficeMilitary Department program management office for the weapon system
DSCA
- DSCA Country Portfolio DirectorDefense Security Cooperation Agency — International Operations (IOPS) / Regional Execution (REX)
- DSCA Country Finance DirectorDefense Security Cooperation Agency — Office of Business Operations, Financial Policy & Regional Execution Directorate (OBO/FPRE)
Service international affairs office
- Air Force: SAF/IA Country DirectorAir Force Secretariat — International Affairs (SAF/IAR regional division)
- Army: DASA(DE&C) Regional Desk OfficerOffice of the Deputy Assistant Secretary of the Army — Defense Exports & Cooperation, under ASA(ALT)
Case manager
- Air Force: AFSAC Command Country ManagerAir Force Security Assistance & Cooperation Directorate (AFSAC), AFLCMC/WF
- Army: USASAC Country Program ManagerU.S. Army Security Assistance Command (USASAC), Regional Operations Directorate
- Navy: NAVSUP WSS Case ManagerNaval Supply Systems Command Weapon Systems Support (NAVSUP WSS)
Industry
- Industry Business DevelopmentU.S. defense contractor
Common Pitfalls
- The program office cannot deliver reliable data — cost and availability estimates — inside the case development standard, and the slips
- Partner changes quantities or adds scope during development, triggering case rework
- Surcharge computation errors discovered during review send the back to the
- scoped too thin
What Practitioners Watch For
References
SAMM
- SAMM C5.T9 — Case Development Categories and Standards
- SAMM C5.T4A — Mandatory Criteria Before Letter of Request Actionable (Before Case Development Activities)
- SAMM C5.6.3.3.1 — Requirement Changes Prior to Offer.
- SAMM C5.2.5.3 — Letter of Request Changes During Case Development.
- SAMM C5.6.11.1
- SAMM C5.6.11.8.1
- SAMM C5.6.2.1 — Case Development Extenuating Factor.
- SAMM C5.2.5.2.3 — Letter of Request Complete.
- SAMM C5.6 — Letter of Request Responses - Letter of Offer and Acceptance
- SAMM C5.2.3 — The Department of Defense Components Authorized to Receive Letters of Request.
- SAMM C5.T3A — Military Department Organizations Authorized to Receive Letters of Request
- SAMM C5.T3B — Other Department of Defense Implementing Agencies Authorized to Receive Letters of Request
- SAMM C5.4 — Rough Order of Magnitude Pricing.
- SAMM C5.5.2 — Price and Availability Responses.
- SAMM C5.6.2 — Letter of Offer and Acceptance Document Preparation Timeframe.
- SAMM C5.6.11.3 — Documents to Accompany Letters of Offer and Acceptance During Coordination.
- SAMM C5.T12 — General Rough Order of Magnitude, Price and Availability, and Letter of Offer and Acceptance Preparation Responsibilities
- SAMM C4.3.2 — Total Package Approach.
Public authorities
- DSCA Policy Memo 13-16 (SAMM E-Change 222) — DSCA 13-16
- DSCA Policy Memo 18-42 — DSCA 18-42
Facts referenced
- Case development standard — Category A (blanket order, CLSSA) — 45 days (as of 11 September 2026) — SAMM C5.T9
- Case development standard — Category B (defined order) — 100 days (as of 11 September 2026) — SAMM C5.T9
- Case development standard — Category C (defined order with complicating factors) — 150 days (as of 11 September 2026) — SAMM C5.T9
- Case development standard — Category D (BPC) — 60 days (as of 11 September 2026) — SAMM C5.T9
- Case development standard — share of documents expected to meet the standard — 85% (as of 11 September 2026) — SAMM C5.T9
SAMM — Security Assistance Management Manual
SAMM Acronyms, as of 12 September 2026
Glossary entry →Security Assistance Management Manual (SAMM) →
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
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
DSAMS — Defense Security Assistance Management System
SAMM Acronyms, as of 12 September 2026
Glossary entry →Defense Security Assistance Management Systems (DSAMS) →
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
LOA — Letter of Offer and Acceptance
SAMM Acronyms, as of 12 September 2026
DSCA — Defense Security Cooperation Agency
SAMM Acronyms, as of 12 September 2026
Glossary entry →Defense Security Cooperation Agency (DSCA) →
Letter of Offer and Acceptance Data (LOAD)
Data required to develop a Letter of Offer and Acceptance.
SAMM Glossary, 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
Defense Article (Foreign Assistance Act; Arms Export Control Act, not including commercial sales subject to the International Traffic in Arms Regulation)
Any weapon, weapons system, munition, aircraft, vessel, boat, or other implement of war;
SAMM Glossary, as of 12 September 2026
Defense Service (Foreign Assistance Act (FAA); Arms Export Control Act (AECA))
Any service, test, inspection, repair, training, publication, technical or other assistance, or defense information used for the purpose of furnishing military assistance or sales of the United States, but does not include military education and training activities under section 2347 of the FAA (22 U.S.C 2347) or design and construction services under section 29 of the AECA.
SAMM Glossary, as of 12 September 2026
P&A — Price and Availability
SAMM Acronyms, as of 12 September 2026
National Funds
Source of funding that is provided directly from the purchaser.
SAMM Glossary, as of 12 September 2026
Letter of Credit (Bank Letter of Credit (BLOC) Memorandum of Understanding (MOU))
A legal instrument issued by a bank, Export Credit Agency, or other lending institution, that guarantees the Foreign Military Sales (FMS) partner's payment due to the U.S. Government under applicable FMS Letter of Offer and Acceptance. LC Number: Unique identifier for a specific Letter of Credit.
SAMM Glossary, as of 12 September 2026
CTA — Country Team Assessment
SAMM Acronyms, as of 12 September 2026
Combatant Command (CCMD)
A unified or specified command with a broad continuing mission under a single commander established and so designated by the President, through the Secretary of Defense and with the advice and assistance of the Chairman of the Joint Chiefs of Staff. Also called CCMD.
SAMM Glossary, as of 12 September 2026
DCS — Direct Commercial Sales
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
MASL — Military Articles and Services List
SAMM Acronyms, as of 12 September 2026
Glossary entry →Military Articles And Services List (MASL) →
TPA — Total Package Approach
SAMM Acronyms, as of 12 September 2026
MDE — Major Defense Equipment
SAMM Acronyms, as of 12 September 2026
Significant Military Equipment (SME)
Defense articles for which special export controls are warranted because of the capacity of such articles for substantial military utility or capability. These items are identified on the U.S. Munitions List in the International Traffic in Arms Regulations by an asterisk preceding the item category listing.
SAMM Glossary, 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
CTS — Case Tracking System
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
Offer Date
The date which appears on the offer portion of an Letter of Offer and Acceptance and which indicates the date on which an Foreign Military Sales offer is made to a foreign buyer.
SAMM Glossary, as of 12 September 2026
Total Package Approach (TPA)
A means of ensuring that Foreign Military Sales customers are aware of and are given the opportunity to plan for and obtain needed support items, training, and services from the USG contractors, or from within the foreign country's resources which are required to introduce and operationally sustain major items of equipment or systems.
SAMM Glossary, as of 12 September 2026
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
CLSSA — Cooperative Logistics Supply Support Arrangement
SAMM Acronyms, as of 12 September 2026
Glossary entry →Cooperative Logistics Supply Support Arrangements (CLSSA) →
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
End Item
The final production product when assembled, or completed, and ready for issue or deployment.
SAMM Glossary, as of 12 September 2026
ENDP — Exception to National Disclosure Policy
SAMM Acronyms, as of 12 September 2026
Major Defense Equipment (MDE)
Any item of Significant Military Equipment on the U.S. Munitions List having a nonrecurring research and development cost of more than $50 million or a total production cost of more than $200 million. Also defined in section 47 (6), Arms Export Control Act.
SAMM Glossary, as of 12 September 2026
Excess Defense Articles (EDA)
Defense articles owned by the USG which are neither procured in anticipation of military assistance or sales requirements, nor procured pursuant to a military assistance or sales order. EDA are items (except construction equipment) that are in excess of the Approved Force Acquisition Objective and Approved Force Retention Stock of all DoD components at the time such articles are dropped from inventory by the supplying agency for delivery to countries or international organizations.
SAMM Glossary, as of 12 September 2026
EDA — Excess Defense Articles
SAMM Acronyms, as of 12 September 2026
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