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Guide

What is a Letter of Request in Foreign Military Sales?

Updated 12 September 2026

A is a partner government's written request to the U.S. Government for defense articles or services — a letter, message, e-mail or in any format — addressed to the authorized to sell the item, with on distribution. Case development cannot start until the has assessed the request against the manual's mandatory "actionable" criteria; the manual sets no performance standard for that assessment but encourages follow-up with the purchaser after 30 days, gives the 10 working days to comment when an Advisory is required, and expects a rough-order-of-magnitude pricing response within 30 days.

What is a Letter of Request?

Upon identifying U.S. systems and/or services to meet defense requirements, the international partner may submit a to the . An can be communicated through formal correspondence (such as a letter or message), email, or a . Less formal methods of communication such as minutes to a meeting or perhaps even oral discussions may be acceptable for transmission of an , but representatives should ensure that the request is appropriately documented for future reference and accountability. C5.2 has a detailed discussion on .

References

Drawn exclusively from publicly available authorities.

SAMM

  • SAMM GLOSSARY/letter-of-request-lorLetter of Request (LOR)
  • SAMM C5.2.1.1
  • SAMM C5.2Letter of Request Submissions.
  • SAMM C5.2.1Letter of Request Format and Information Requirements.
  • SAMM C5.2.2Letter of Request Submission Procedures.
  • SAMM C5.2.3The Department of Defense Components Authorized to Receive Letters of Request.
  • SAMM C5.T3AMilitary Department Organizations Authorized to Receive Letters of Request
  • SAMM C5.T3BOther Department of Defense Implementing Agencies Authorized to Receive Letters of Request
  • SAMM C5.2.5.2Letter of Request Assessment.
  • SAMM C5.2.6.1Letter of Request Advisory Memoranda.
  • SAMM C5.T2Letter of Request Submissions Guidelines
  • SAMM C5.T6Defense Articles or Services that Require Item-specific Letter of Request Advisories or Review
  • SAMM C5.F3Generic Letter of Request Checklist
  • SAMM C5.3.1Types of Letter of Request Responses.
  • SAMM C5.4Rough Order of Magnitude Pricing.
  • SAMM C5.5Letter of Request Responses - Price and Availability

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