Compliance

What is the Buy American Act in construction?

The Buy American Act is the federal law that requires contractors on direct federal construction contracts to use domestic construction materials unless a specific exception applies.

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The Buy American Act is a federal domestic preference law. On a federal construction contract it means the materials you build into the project must be domestic construction material, as defined in the Federal Acquisition Regulation (FAR), unless the government has approved an exception. It applies to contracts the federal government awards directly. Federally funded state and local work, like a highway job paid partly with federal grants, usually falls under different rules, including Build America, Buy America. Read the contract clause to see which regime you are under.

How the domestic content test works

FAR 25.003 splits construction material into two buckets. For a material that is predominantly iron or steel, it must be manufactured in the United States and the cost of foreign iron and steel must be less than 5 percent of the cost of all its components. For everything else, the material must be manufactured in the United States and the cost of domestic components must clear a threshold. That threshold is 65 percent for items delivered in calendar years 2024 through 2028 and rises to 75 percent for items delivered starting in 2029. Commercially available off-the-shelf items get simpler treatment, and components of unknown origin count as foreign.

Say a mechanical sub on a $2.4 million VA clinic renovation is buying rooftop units. The supplier says the units are assembled in Ohio. That alone is not enough. The question is whether the domestic components exceed 65 percent of the cost of all components for a 2026 delivery, and the sub needs that in writing from the manufacturer before the submittal goes in, not after the units are set.

Exceptions and how to request one

FAR 25.202 lists the main exceptions for construction material:

  • Public interest: the agency head decides that applying the restriction would be impracticable or inconsistent with the public interest.
  • Nonavailability: the material is not mined, produced, or manufactured in the United States in sufficient and reasonably available commercial quantities.
  • Unreasonable cost: the contracting officer concludes the domestic material costs too much. Under FAR 25.204, the evaluation adds 20 percent of the cost of the foreign material to the offered price, unless the agency sets a higher figure.
  • Commercial information technology: a narrow carve-out tied to specific appropriations.

Exceptions are requested through the contracting officer, ideally before bid or early in the job, with price quotes and supplier data attached. A request filed after foreign material is already installed is a weak position. If it is denied, the remedy can be removal and replacement at your cost.

Common mistakes and disputes

  1. Treating "assembled in the USA" as proof of compliance. The test is about where it was manufactured and the cost of its components.
  2. Not flowing the clause down. A GC who signs the prime contract is responsible for what the subs and suppliers bring on site, so the requirement belongs in every subcontract and purchase order.
  3. Waiting until the submittal stage to ask suppliers for origin data, when long-lead equipment has already been ordered.
  4. Confusing the Buy American Act with Build America, Buy America or a state preference law. They have different thresholds and different paperwork.
  5. Losing the certifications. Keep manufacturer letters with the closeout file so an auditor can trace each major material.

Related terms

The Buy American Act sits alongside other federal contract rules such as the Davis-Bacon Act for wages and the payment and performance bond requirements. For a side by side of the federal and grant-funded programs, read Buy American and Build America rules for contractors. Smart Business Automator keeps supplier documents and compliance files attached to each job so closeout paperwork for public work is in one place.

Frequently asked questions

Does the Buy American Act apply to private construction?

No. It applies to contracts awarded by the federal government. Private work and many federally funded state or local projects follow other rules, so check the clauses in your contract.

What percentage of domestic content is required?

For construction material that is not predominantly iron or steel, FAR 25.003 sets 65 percent for items delivered in 2024 through 2028 and 75 percent starting in 2029. Iron and steel materials use a separate test based on foreign iron and steel staying under 5 percent of component cost.

Who asks for an exception?

The contractor submits the request to the contracting officer with supporting data. The decision belongs to the government, not to the GC or supplier.

Is the Buy American Act the same as Build America, Buy America?

No. Build America, Buy America applies to federally funded infrastructure administered by grantees, while the Buy American Act covers direct federal purchases. The tests and waiver processes differ.

Sources

  1. Acquisition.gov: FAR 25.003 Definitions
  2. Acquisition.gov: FAR 25.202 Exceptions
  3. Acquisition.gov: FAR 25.204 Evaluating offers of foreign construction material
Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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