The federal government's domestic-content regime tightens materially in 2026. Agencies are moving from the waiver-heavy transitional period to full enforcement of the Buy American Act, the Build America Buy America Act (BABAA), and Trade Agreements Act provisions. The biggest single date: October 1, 2026, when FHWA-funded projects must meet a 55% U.S.-sourced component-cost threshold in addition to final-assembly requirements. Coverage from Arnall Golden Gregory, Holland & Knight, and Truss Faber.

What's actually new

Three changes worth understanding:

  1. Higher domestic content thresholds. Buy American Act thresholds escalate on a published schedule. Where prior years let contractors meet a 55% domestic content requirement, future thresholds reach 60% then 65% in subsequent years.
  2. Tighter waiver standards. Agencies are moving from broad waivers (during BABAA's transition years) to narrow, project-specific waivers requiring documented unavailability or unreasonable cost.
  3. Continuous compliance verification. Per agency guidance, federal contractors must maintain audit-ready documentation systems that can be produced on demand — a shift from periodic to continuous verification.

FHWA October 1, 2026 deadline

For Federal Highway Administration-funded transportation projects:

  • Already in effect (since October 1, 2025): Manufactured products must be finally assembled in the United States.
  • Effective October 1, 2026: Projects obligated after this date must meet both final-assembly and a minimum 55% U.S.-sourced component-cost threshold.

Contractors on FHWA-funded work should be sourcing now to hit the October threshold; supply chain re-qualification cycles take 6-18 months, longer than the time remaining.

What "False Claims Act exposure" means in practice

The compliance regime puts FCA risk on contractors who misrepresent domestic-content claims. Per Arnall Golden Gregory's analysis:

"The convergence of escalating Buy American Act thresholds, the Build America, Buy America Act, and heightened Trade Agreements Act enforcement creates serious risk of disqualification, contract termination, and False Claims Act liability for contractors who fail to act."

Agencies are explicitly directed to refer suspected misrepresentations to the Department of Justice. FCA treble damages plus per-claim civil penalties make this a live financial risk, not a paperwork issue.

Specific agency actions to track

  • FEMA — Revised Buy America Preference Policy effective January 2026 covers FEMA-funded projects.
  • FHWA — October 1, 2026 component-cost threshold (above).
  • OMB — Government-wide guidance on BABAA implementation has tightened in 2026.
  • Multiple Award Schedule — Periodic audits now mandated for American-origin claims on MAS, GWACs, and IDIQs.

What to do this week

  • For any federally-funded project: pull a domestic-content map. Identify components by country of origin and U.S. share of cost.
  • For FHWA-funded work: verify your supply chain meets both final-assembly AND 55% component-cost requirements before October 1.
  • Document supplier certifications — agencies want them in writing, with right of audit. Verbal supplier assurances are not defensible.
  • Brief your finance team on the FCA exposure: domestic-content misrepresentation is FCA territory, not just contract-compliance territory.
  • Watch for waiver requests in your competitive landscape — competitors granted waivers may have a temporary cost advantage; competitors denied waivers may face exclusions.

Sources