Guide
What happens after a Foreign Military Sales Letter of Request is submitted?
After receiving a the enters it in as a Customer Request, acknowledges receipt to the purchaser and validates it, and provides a copy to and the if they were not on distribution.
What happens after a Letter of Request is submitted?
Within five days of receipt, the must validate the to confirm that the international partner is eligible for and that there are no sanctions in place, ensure the item may be sold, ensure the request was received through proper channels, and confirm that the country is authorized . The loads the data into the Defense Management System (), the -managed data system used for case development and implementation, and acknowledges receipt of the to the international partner. Within ten days of receipt, the establishes the case in and tasks organizations to compile the data () that will be used in preparing the case.
In some instances, may need to prepare an Advisory to notify the Under Secretary of Defense for Acquisition and Sustainment (A&S) and the Chairman of the Joint Chiefs of Staff of certain proposed sales. The C5.2.6 describes Advisories and how they are processed. Table C5.T6 of the identifies the types of defense articles requiring either an Advisory or some other type of special review. Each entry in the table provides a hyperlink to either a specific form or to a specific section of the explaining the unique review process for that item. An Advisory does not replace required disclosure or releasability actions being worked by the .
data refers to a estimate reflecting projected cost and availability for defense articles and services identified in an . Generally the will use existing financial and logistics information to respond to a request. is intended for planning purposes only and should not be used by the potential purchaser for budgeting purposes. Normally, nonstandard subsystems will not be included in responses unless approved by . These ROM estimates are not valid for use in preparation of an , and therefore should not be construed as commitments to provide the requested materiel and/or services. In other words, a response is not an official offer to sell. After reviewing data, a separate for is required if an international partner desires to pursue a purchase. It is not necessary for an for data to precede an for an . To avoid confusion, the term should not be used when referring to data developed for an —such data should be referred to as data (). Refer to C5.3 for further discussion of data.
References
SAMM
- SAMM C5.2.5.1 — Letter of Request Receipt and Acknowledgement.
- SAMM C5.2.4 — Defense Security Cooperation Agency and Department of State Letter of Request Review.
- SAMM C5.2.6.1.1 — Preparing Letter of Request Advisories.
- SAMM C5.5.1 — Definition.
- SAMM C5.4.1 — Definition.
Related
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
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
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) →
Security Cooperation Organization (SCO)
A Department of Defense element that is part of the United States Diplomatic mission located in a foreign country to carry out security assistance and security cooperation management functions under the supervision and coordination authority of the senior defense official/defense attaché.
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
LOA — Letter of Offer and Acceptance
SAMM Acronyms, as of 12 September 2026
Communications Security (COMSEC)
The measures and controls taken to deny unauthorized persons’ information derived from telecommunications and other information systems, and technologies necessary to ensure the authenticity of such communications. COMSEC includes cryptographic security, transmission security, emissions security, and physical security of COMSEC material. Secure telecommunication or information system cryptographic components are the primary COMSEC products for transmission security and commonly called COMSEC devices or products. COMSEC devices are designated Controlled Cryptographic Items (CCI).
SAMM Glossary, as of 12 September 2026
Case Identifier
A unique six-digit identifier assigned to an Foreign Military Sales case for the purpose of identification, accounting, and data processing of each Letter of Offer and Acceptance. The case identifier consists of the two-letter country code, a one-letter designator for the Implementing Agency, and a three-letter case designator.
SAMM Glossary, as of 12 September 2026
Dependable Undertaking (FMS)
An excepted term and condition within the Foreign Military Sales case (or Letter of Offer and Acceptance). A firm commitment by a foreign government or international organization to pay the full amount of a contract for new production or for the performance of defense services which will assure the U.S. against any loss on such contract and to make funds available in such amounts and at such times as may be required by the contract, or for any damages and costs that may accrue from the cancellation of such a contract, provided that in the judgment of the DoD there is sufficient likelihood that the foreign government or international organization will have the economic resources to fulfill the commitment.
SAMM Glossary, as of 12 September 2026
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
Letter of Offer and Acceptance Data (LOAD)
Data required to develop a Letter of Offer and Acceptance.
SAMM Glossary, as of 12 September 2026
SCO — Security Cooperation Organization
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
MDE — Major Defense Equipment
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
CTA — Country Team Assessment
SAMM Acronyms, as of 12 September 2026
Security Cooperation
Activities undertaken by the DoD to encourage and enable international partners to work with the United States to achieve strategic objectives. It includes all DoD interactions with foreign defense and security establishments, including all DoD-administered security assistance programs, that: build defense and security relationships that promote specific U.S. security interests, including all international armaments cooperation activities and security assistance activities; develop allied and friendly military capabilities for self-defense and multinational operations; and provide U.S. forces with peacetime and contingency access to host nations.
SAMM Glossary, as of 12 September 2026
OUSD(P) — Office of the Under Secretary of Defense for Policy
SAMM Acronyms, as of 12 September 2026
ENDP — Exception to National Disclosure Policy
SAMM Acronyms, as of 12 September 2026
C4ISR — Command, Control, Communications, Computer, Intelligence, Surveillance and Reconnaissance
SAMM Acronyms, as of 12 September 2026
COMSEC — Communications Security
SAMM Acronyms, as of 12 September 2026
EWIRDB — Electronic Warfare Integrated Reprogramming Database
SAMM Acronyms, as of 12 September 2026
Technical Data
Recorded information of a scientific or technical nature, regardless of form or characteristic. Examples of technical data packages include research and engineering drawings and associated lists, specifications, standards, process sheets, manuals, technical reports, catalog item identifications, and related information and computer software documentation.
SAMM Glossary, as of 12 September 2026
TDP — Technical Data Package
SAMM Acronyms, as of 12 September 2026
SAMM — Security Assistance Management Manual
SAMM Acronyms, as of 12 September 2026
Glossary entry →Security Assistance Management Manual (SAMM) →
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
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
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