Buy American Act compliance now requires closer review of component origin, domestic content thresholds, and contract-specific exceptions. For government contractors, the increased domestic content requirements and differences between FAR and DFARS make sourcing, supplier certifications, and documentation critical to supporting accurate compliance certifications.
Highlights
- Buy American Requirements. Covered federal supply contracts require contractors to determine whether delivered end products qualify as domestic or must be identified as foreign end products under the Buy American Act.
- Domestic Content Thresholds. For manufactured end products subject to the standard component test, the cost of domestic components must exceed 65% for items delivered in calendar years 2024 through 2028 and 75% for items delivered beginning in 2029. Different rules apply to COTS items and end products that consist wholly or predominantly of iron or steel.
- Prime Contractor Responsibility. Prime contractors remain responsible for ensuring that the end products delivered under their contracts comply with applicable Buy American requirements. Supplier certifications and subcontract clauses may support that determination, but they do not transfer the prime contractor’s contractual responsibility.
- FAR and DFARS Differences. Contractors performing both DoD and non-DoD work must distinguish between FAR and DFARS treatment of domestic end products, especially when qualifying country rules may apply.
- Certification Risk. Incorrect origin determinations may result in contractual remedies and other compliance consequences. Knowingly or recklessly submitting materially false Buy American representations or certifications may also create potential False Claims Act exposure.
The Buy American Act (BAA) clause, FAR 52.225‑1 Buy American- Supplies, and provision FAR 52.225-2 Buy American Certificate are included in federal contracts exceeding the micro-purchase threshold and require government contractors to deliver domestic end-products unless an exception applies. This is an important and complex topic, and it is vital to ensure you are complying with the requirement.
The key definitions in the clause are:
- Domestic end-product: manufactured in the United States or meets domestic component thresholds.
- Component: any articles, material, or supply incorporated directly into an end-product.
- Cost of components: acquisition cost includes transportation and duties for purchased components or manufacturing cost, including overhead (excluding profit) for contractor produced components.
- Commercially available off-the-shelf (COTS) item: COTS components are exempt from the component test.
- United States: includes the 50 States, the District of Columbia and outlying areas.
- Predominantly iron or steel: the cost of the iron and steel content exceeds 50 percent of the total cost of all the components.
- Steel: an alloy that includes at least 50 percent iron, between 0.02 and 2 percent carbon.
The FAR 52.225-2 Buy American Certificate is a provision whereby government contractors must provide a list of:
- Foreign end products
- Products that contain a critical component (e.g., FAR 25.105)
As of the date of this article, FAR 25.105 has not yet been populated with a list of critical components, but government contractors will need to include any critical end-item components in the Buy American Certificate once the FAR is updated.
What is the Domestic Content Threshold?
The domestic content threshold under the Buy American Act (BAA) is the minimum percentage of the total cost of components of an end item that must be manufactured in the United States for a product to qualify as a domestic end-product. The domestic content requirement has increased over time. For 2024 – 2028, the required US component threshold is 65%. Beginning in 2029, the percentage increases to 75%. The percentage calculation is based solely on the cost of components in the end-product. It excludes labor, overhead, and other costs added by the prime contractor.
For example, if a supplier builds a component/sub-assembly in the U.S., the component is a domestic component even if it contains 100% Chinese electronics. However, other prohibitions may apply (read more in our article, FAR Case 2023-008 The Proposed Rule on Prohibiting Certain Semiconductor Products and Services).
If the supplier moves the final assembly step of that component from the U.S. to Mexico, the entire cost of the component is considered foreign for the threshold content calculation. Prime contractors sign the Buy American Act (BAA) certificate to certify that the end items meet the domestic content threshold or provide a list of foreign line items that do not qualify as domestic. DoD can treat some qualifying foreign countries as domestic, as discussed below.
There are additional requirements if 50% of the components of an end item are predominantly iron or steel.
Is FAR 52.225-1 a Flowdown Clause?
Although FAR 52.225‑1 (Buy American—Supplies) is not a mandatory flowdown clause, a prime contractor should flow it down when a subcontractor is providing a deliverable end item under the prime contract. The prime contractor remains responsible for ensuring that any subcontracted items comply with Buy American requirements and may require supporting documentation to demonstrate compliance.
Some prime contractors choose to include this clause in all subcontracts for consistency; however, doing so does not relieve the prime contractor of its obligation to verify that components or materials supplied by vendors or subcontractors qualify as domestic.
Are There Other Exceptions?
For DoD contracts, DFARS 252.225‑7001 (Buy American and Balance of Payments Program) applies, and this clause allows contractors to treat qualifying‑country end-products as domestic. This is a key distinction from FAR 52.225‑1, which does not recognize the qualifying‑country exception and therefore does not apply to civilian agencies.
Prime contractors performing both DoD and non‑DoD work must account for these differences when applying the domestic content test. In particular, an item that qualifies as “domestic” under DFARS because it originates from a qualifying country may not qualify as domestic under FAR rules. As a result, primes must ensure that sourcing decisions, supplier certifications, and compliance documentation comply with the applicable regulations for each contract.
Takeaway
Under the Buy American Act, prime contractors are responsible for ensuring that the end products they deliver to the Government comply. This requires the prime contractor to trace the supply chain, verify the origin of components, document how domestic content was calculated, and identify any applicable exceptions, such as COTS items or qualifying‑country components under DoD contracts.
The origin of a component is determined by where it is physically manufactured or where final assembly occurs. A component shipped from a U.S. warehouse does not qualify as domestic unless its manufacturing or final assembly took place in the United States. Prime contractors must therefore verify the actual manufacturing location of each component and apply the correct exceptions based on the contract type.
For government contractors performing both DoD and non‑DoD work, it is critical to recognize that qualifying‑country components may be treated as domestic under DFARS 252.225‑7001 but cannot be excluded from the domestic content calculation under FAR 52.225‑1 for civilian agencies. Misapplying these rules can result in inaccurate origin certifications.
Providing incorrect origin or compliance information exposes contractors to significant consequences, including contract termination and potential liability under the False Claims Act.
Maintaining Buy American Act Compliance
Redstone GCI supports government contractors by reviewing contract clauses, supplier certification documentation, subcontract flowdowns, purchasing procedures, and documentation practices tied to Buy American Act requirements. This includes helping government contractors distinguish between FAR 52.225 1 and DFARS 252.225 7001 requirements, assess whether domestic content and qualifying country rules are being applied correctly, evaluate how component origin is documented, and align purchasing, contracts, accounting, and program teams around the records needed to support accurate certifications. Our team of experts can also provide training and operational support to enable government contractors to strengthen internal review processes before sourcing decisions, subcontract awards, or certificate submissions create avoidable compliance risk.
Frequently Asked Questions (FAQs)
- What is the Buy American Act? The Buy American Act establishes a preference for domestic end products in certain federal acquisitions. When the applicable Buy American clause is included in a contract, the contractor generally must deliver domestic end products unless foreign end products were identified in its offer or an applicable exception permits their acquisition.
- When does the Buy American Act apply? The Buy American Act generally applies to supplies acquired for use in the United States when the value of the supply contract, or the supply portion of a services contract, exceeds the micro-purchase threshold. The applicable solicitation and contract clauses must be reviewed because exceptions, trade agreements, agency deviations, and other domestic preference requirements may change the governing rules.
- What makes an end product domestic? An end product may qualify as domestic when it is manufactured in the United States and satisfies the applicable domestic content requirements. For products subject to the standard component test, the cost of domestic components must exceed 65% for items delivered in calendar years 2024 through 2028 and 75% beginning in 2029. Different tests apply to COTS items and products that consist wholly or predominantly of iron or steel.
- Does buying from a U.S. supplier make a component domestic? Not necessarily. A component does not qualify as domestic merely because it was purchased from a U.S. supplier or shipped from a U.S. warehouse. Contractors should determine where the component was manufactured. Assembly performed in the United States may constitute manufacturing depending on the nature and extent of the operations, but final assembly alone does not automatically establish domestic origin.
- Does a prime contractor have to flow Buy American requirements to subcontractors? FAR 52.225 1 is not a mandatory flowdown clause, but a prime contractor should consider flowing it down when a subcontractor provides a deliverable end item under the prime contract. The prime contractor remains responsible for Buy American compliance for the items delivered to the Government.
- Why do FAR and DFARS differences matter? DoD contracts may permit qualifying country end products to be offered and delivered without the restrictions applied to other foreign end products under DFARS 252.225-7001. FAR 52.225-1 does not contain the same qualifying country treatment. Contractors performing both DoD and civilian agency work must therefore apply the clause and country-of-origin rules included in each contract.


Lynne is a Director with Redstone Government Consulting, Inc. providing government contract consulting services to our clients primarily related to Commercial Item Determinations and support, Cost Accounting Standards, DFARS Business System Audits, Proposals, and Incurred Cost. Prior to joining Redstone Government Consulting, Lynne served in several capacities with DCAA and DCMA for over 35 years. Professional Experience Lynne began her career working with DCAA in the Honeywell Resident Office, Clearwater, FL in 1984. Lynne’s experience included various positions which involved conducting or reviewing forward proposals or rate audits, financial capability audits, progress payments, accounting and estimating systems, cost accounting standards, claims and disclosure statement reviews. She is an expert in FAR, DFARS, CAS and testified as an expert witness. Lynne assisted in drafting the commercial item guidance for DCAA Headquarters. Lynne was assigned as a Regional Technical Specialist where she provided guidance to 20 field offices on highly complex or technical issues relative to forward pricing, financial capability or progress payment issues. As an Assistant for Quality, she was involved in reviewing and ensuring audit reports were in compliance with policy and GAGAS as well as made NASBA certified presentations to the staff including but not limited to billing reviews, CAS, unallowable cost and progress payments. To enhance her experience in government contracting, Lynne accepted a position with DCMA in 2015 as part of the newly organized DCMA Cadre of Experts in the Commercial Item Group. This included performing reviews of prime contractor’s assertions and/or commercial item determinations as well as performing price analyses. Lynne was a project lead and later became a lead analyst where she engaged with the buying commands on requests and reviewed price analysis reviews performed by a team of 5 analysts. She also assisted the DCMA CPSR team relative to commercial items and co-instructed the Commercial Item Training presented to DCMA. Education Lynne earned a Bachelor of Science Degree in Accounting from the University of Central Florida. Certifications State of Florida Certified Public Accountant State of Alabama Certified Public Accountant Defense Acquisition Workforce Improvement Act (DAWIA) Level III- Auditing DAWIA Level III – Contracting