This guide explains DFARS Part 225: Foreign Acquisition. Read the relevant coverage with the FAR, applicable supplements and deviations, and the actual solicitation or contract.
A domestic supplier address does not settle a defense product’s sourcing requirements. Identify the end product, component and material rules, applicable country treatment, and supporting evidence before making a compliance claim.
Watch the DFARS Part 225 lesson
DFARS Part 225: Start with the applicable country definitions
Section 225.003 defines terms used in defense foreign acquisition, including domestic and qualifying-country concepts. Section 225.872 addresses qualifying-country sources. Read the particular definition and conditions that apply to the acquisition. A supplier’s business location, an end product’s manufacturing location, and a component’s origin answer different questions. Do not substitute one fact for another.
Separate the sourcing frameworks
Part 225 contains distinct coverage for Buy American, trade agreements, prohibited sources, and additional statutory restrictions. Identify which provisions and clauses actually apply. Favorable treatment under one framework does not automatically resolve every other restriction. Keep the country analysis tied to the actual item, acquisition, and rule instead of describing an entire supplier as universally acceptable.
Trace covered materials and applicable dates
Sections 225.7003 and 225.7018 address particular specialty metals and specified magnets, tantalum, and tungsten requirements, with defined coverage and exceptions. Section 225.7018 also distinguishes rules effective through 2026 from those effective in 2027. Verify the controlling text and date. Final assembly location alone is not a complete substitute for the material and supply-chain evidence the applicable rule requires.
A hypothetical example
Consider a fictional aerospace supplier quoting an actuator assembly. Purchasing identifies a domestic distributor and assumes the sourcing review is complete. The assembly contains a magnet and metal components, but the proposal file does not identify the relevant production stages, material origin, or supporting supplier statements.
Contracts maps the actual clauses to the end product and relevant materials. Engineering and purchasing identify which component and production facts the review needs. The team requests focused evidence and checks the applicable dates and any claimed exception instead of relying on a generic domestic-supplier declaration.
The company can now identify both supported conclusions and gaps before quoting. This example does not establish a country-of-origin determination, approve an exception, or certify sourcing compliance. It demonstrates why the review must follow the product and relevant material facts through the actual acquisition framework.
Avoid the shortcut
Do not collapse Buy American, trade-agreement treatment, prohibited-source screening, and specialty-material restrictions into one checkbox. Keep each applicable rule and its evidence visible. If a supplier changes a material or production location, revisit the affected conclusion rather than assuming an earlier representation covers the replacement automatically.
Try this exercise
Use a fictional assembly with one magnet and one metal component. Identify the sourcing clauses and separate the facts needed for each applicable review. Record an unknown production or origin fact, assign an owner to obtain it, and identify any date-sensitive requirement before drafting the compliance statement.
This worksheet is a GovSuccess preparation practice, not a prescribed Government form or a determination of compliance.
- Solicitation and incorporated sourcing clauses
- Exact end product and intended delivery
- Manufacturing and relevant component facts
- Applicable country definition and treatment
- Covered material and production-stage evidence
- Effective dates exceptions and approval questions
- Supplier changes and responsible review owner
- Supported conclusion and retained records
Official source and applicability
DFARS Part 225 — official text. The source page displays DFARS Change 5/7/2026, effective May 7, 2026. Check later changes and the requirements applicable to your acquisition. Route material interpretation questions for qualified review.
Build your readiness baseline
Explore GovAssessment for a structured business-readiness baseline based on your answers. It does not certify compliance, approve a contract action, or guarantee an award.
General education, not legal advice. Browse the DFARS series.
