# Domestic-content conditions in public purchasing

Policy Brief · United States · Industry and Supply Chains

A domestic-content requirement has economic meaning only within a defined procurement or assistance regime. The required share, calculation method, product category, delivery date, and available exceptions determine which suppliers can compete and how they organize production. The phrase Buy American does not identify one rule that applies identically to every publicly funded purchase.

For businesses, the initial question is the governing contract or award. For policy analysis, it is how that requirement changes cost, competition, capacity, and the location of value added relative to the available alternatives.

## Distinguish direct procurement from infrastructure assistance

[FAR Part 25](https://www.acquisition.gov/far/part-25) governs specified foreign-acquisition issues in federal procurement. For many manufactured end products under its Buy American provisions, the domestic-component cost must exceed 65% for deliveries in 2024 through 2028, subject to the applicable rules and exceptions. Products wholly or predominantly of iron or steel and commercially available off-the-shelf items have distinct treatment.

[2 CFR Part 184](https://www.ecfr.gov/current/title-2/subtitle-A/chapter-I/part-184), by contrast, addresses Buy America preferences for infrastructure projects receiving federal financial assistance. Its manufactured-product definition uses a different component-cost standard, generally greater than 55% unless another applicable standard governs. Construction materials and iron or steel have their own requirements.

These distinctions prevent a common analytical mistake: applying a familiar percentage to a purchase governed by another framework. The cost definition, manufacturing requirement, agency implementation, waiver, and actual contract language need to be read together. This brief does not determine compliance for an individual product.

## A threshold is not a share of national value added

A component-cost test uses specified accounting rules. It is not necessarily a measure of the domestic value added embodied throughout the supply chain. A domestically acquired component can include inputs from several origins, while domestic assembly and services can enter differently under the governing calculation.

The denominator is equally important. Changing which costs are included can alter the result without changing the physical product. A supplier's invoice location, corporate ownership, place of manufacture, and the origin of components are separate observations. Treating them as interchangeable can overstate or understate the production required to satisfy the rule.

For policy evaluation, a compliant purchase is evidence that the legal test has been met under the applicable determination. The wider economic objective may concern industrial capacity, resilience, employment, or security. Those outcomes require additional evidence about actual production and alternative supply arrangements.

## Procurement design changes competition

| Design feature | Supplier response | Economic question |
| --- | --- | --- |
| Product scope | Changes which items require qualifying supply | Is the requirement targeted at the intended capacity? |
| Component-cost test | Changes sourcing and documentation | Does compliance generate additional domestic production? |
| Delivery-date standard | Changes contracts and investment schedules | Is there enough time for efficient adjustment? |
| Exceptions or waivers | Preserves access under specified conditions | How do availability and cost affect delivery? |
| Contract size and duration | Changes the return on entry and capacity | Can suppliers invest without reducing effective competition? |

A predictable pipeline can encourage investment by giving suppliers a clearer market. A single short contract may be too small or uncertain to support a new production line. Conversely, bundling purchases into a very large contract can limit participation by smaller suppliers. The procurement design determines how the demand signal reaches capacity.

Competition also affects the distribution of benefits. If only one supplier can meet a requirement immediately, part of the public expenditure may appear as a higher price or margin rather than additional capacity. Entry and expansion can change that result over time. A short-run price premium should therefore be distinguished from the long-run cost of developing a broader supply base.

## Supply-chain adjustment has a timetable

Replacing a component can require engineering, testing, certification, and changes to maintenance arrangements. A nominally available substitute may not be operationally equivalent for a safety-critical system. These costs should be included when evaluating the price of compliance rather than treated as unrelated administrative burdens.

The same issue applies to capacity. A new domestic supplier may need specialized machinery and trained staff before it can deliver. A rule can create demand without making those inputs immediately available. If several public programs demand the same scarce product, procurement schedules can compete with one another and raise costs.

A staged requirement can give suppliers time to adjust, but the economic outcome depends on credible demand and implementation. If firms expect frequent exceptions or abrupt cancellation, the incentive to invest can weaken. If the standard is inflexible in the face of a genuine shortage, project delivery can suffer. The balance should be assessed using evidence about available capacity and lead times.

## Resilience requires more than domestic location

Domestic production can reduce some international exposures, but concentration at one facility can create another vulnerability. Resilience depends on redundancy, substitutability, inventories, technical knowledge, and the ability to restore production. A domestic-content percentage alone does not measure these characteristics.

A useful assessment therefore follows the critical inputs and the capacity to maintain or replace them. It asks whether the procurement requirement produces new capability, preserves an existing capability, or reallocates a limited supply from another user. These outcomes can all occur, but their public value differs.

The relevant burden can differ between an established supplier and a prospective entrant. A firm with existing records, systems, and specialist staff can spread a compliance cost over a larger volume of transactions. A smaller entrant may face a substantial initial cost before earning any revenue. Evaluating implementation should therefore distinguish a recurring transaction cost from a fixed participation cost and examine whether the resulting market structure affects prices or supplier diversity.

## Assessment

Domestic-content conditions should be analyzed as specific rules embedded in procurement design. FAR Part 25 and 2 CFR Part 184 illustrate why the legal framework must be identified before a percentage is interpreted. Compliance, domestic production, and resilience remain distinct findings.

For policymakers, the practical test is whether the additional cost and adjustment produce the intended capability over a credible horizon. For suppliers, it is the exact requirement and delivery commitment in the governing arrangement. The related execution question is examined in [Federal grants and subnational project execution](/research/federal-grants-and-subnational-project-execution/).

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American Economic Senate