Guide
How long does Foreign Military Sales Letter of Request assessment take?
Case development may not begin until the meets the mandatory actionable criteria. Other U.S. Government reviews of the request vary with the items requested and should, to the extent possible, run concurrently to minimize the response time.
How long does Letter of Request assessment take?
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.
There may be many agencies not identified here that need to review an and a proposed offer. The type and breadth of the reviews vary to a large extent depending on the items being requested. It is the responsibility of the to ensure that the correct organizations have the opportunity to review the . To the extent possible, the required reviews should occur concurrently to minimize the response time to the international partner.
LOR Advisory and LORs Requiring Unique Review
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 .
References
SAMM
- SAMM C5.2.5.2.2 — Letter of Request Actionable.
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
LOR — Letter of Request
SAMM Acronyms, 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) →
LOA — Letter of Offer and Acceptance
SAMM Acronyms, as of 12 September 2026
FMS — Foreign Military Sale
SAMM Acronyms, 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
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
SAMM — Security Assistance Management Manual
SAMM Acronyms, as of 12 September 2026
Glossary entry →Security Assistance Management Manual (SAMM) →