Guide
What is Obligational Authority in Foreign Military Sales?
is the financial authority that lets the incur obligations on a case, such as contracts, requisitions and training, up to the value of the case. It is not money. Once the partner has accepted the and has received the and posted financial implementation, the processes OA and the case can be implemented.
What is Obligational Authority in Foreign Military Sales?
is a financial authority, which allows legally binding financial obligations to be incurred in an amount not to exceed the value of the material and service requirements on a case. Once the international partner has accepted an and provided funds to , and the has received OA, the case can then be implemented, and obligations can be recorded. The term “obligation” relates to orders placed, contracts awarded, requisitions submitted, services performed, and similar transactions during a given period that will require payments.
The OA is evidence of proper case acceptance, including receipt of , and signals that the case may be implemented. OA is not money, but it provides financial authority allowing the case manager to implement the case. Upon receipt of OA, the may begin to incur obligations against the case (i.e., negotiate a contract, submit requisitions, schedule training, etc.).
The OA allows the to prepare and process funding documents on behalf of the international partner.
Once the program data is available and has been established, the may then start to process requisitions.
References
SAMM
- SAMM C6.1.3.1
- SAMM C6.1.1 — Routine Case Implementation.
- SAMM C5.6.5.4.16.2 — Execution of Non-Specific Requirements Lines.
- SAMM C6.7.3.1.2 — Monitoring Funds.
- SAMM C16.2.8 — Financially Troubled Case.
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)
Foreign Military Sales (FMS)
A process, authorized by the Arms Export Control Act, through which eligible foreign governments and international organizations may purchase defense articles, services, and training from the United States Government.
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)
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)
LOA — Letter of Offer and Acceptance
SAMM Acronyms, as of 12 September 2026
DFAS-IN — Defense Finance and Accounting Service - Indianapolis
SAMM Acronyms, as of 12 September 2026
FMS — Foreign Military Sale
SAMM Acronyms, 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
Glossary entry →Open the manual’s entry → (opens in new tab)
Foreign Military Sales (FMS) Case
A USG Letter of Offer and Acceptance (LOA), and any subsequent Amendment or Modification, that is the legal instrument used by the USG to transfer defense articles and defense services under the FMS program. See also "FMS" and "LOA."
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)
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)
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)
ILCO — International Logistics Control Office
SAMM Acronyms, as of 12 September 2026
Glossary entry →International Logistics Control Office (ILCO) →
Non-Specific Requirements Line
Undefined requirements lines with MASL “R9B 079200N0NSPRQ, Non-Specific Requirements” that can be included on Foreign Military Sales cases when requested by or coordinated with the purchaser as a holding place for funds budgeted but not yet programmed. Non-Specific Requirements lines cannot be used to requisition items or to provide services, are written with Source Code “S” (stock), and only utilize national funds. Non-Specific Requirements lines are written without a defined period of performance.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
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)
LOR — Letter of Request
SAMM Acronyms, as of 12 September 2026
Accrued Costs
The financial value of delivered articles and services and incurred costs reported to DFAS-IN via Delivery Transactions. Incurred costs represent disbursements for which no physical deliveries have yet occurred. Examples are: progress payments to contractors, GFM/GFE provided to contractors, and nonrecurring costs.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)