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Understanding the Build America, Buy America Act

What Transportation Infrastructure Professionals Need to Know

Written by
Katie Behrens
Published on
September 21st, 2025

The Evolution of American Infrastructure Policy

The Build America, Buy America (BABA) Act marks a pivotal moment in American infrastructure policy, fundamentally changing how federally funded projects source materials and equipment. Enacted as part of the Infrastructure Investment and Jobs Act (IIJA) in November 2021, BABA represents the most comprehensive domestic content requirement for infrastructure projects in decades.

This legislation emerged from growing concerns about supply chain vulnerabilities exposed during the COVID-19 pandemic and a bipartisan desire to strengthen American manufacturing capabilities. Unlike previous Buy America provisions that applied selectively, BABA creates a unified framework covering virtually all federally funded infrastructure investments, from highways and bridges to transit systems and broadband networks.

What's Actually Changing?

BABA introduces several groundbreaking changes that go far beyond existing Buy America requirements:

Expanded Product Categories

Previously, Buy America rules primarily focused on iron and steel products. BABA dramatically expands coverage to include all manufactured products used in infrastructure projects. This means everything from traffic signal controllers and LED lighting systems to utility poles and pedestrian crossing equipment now falls under domestic sourcing requirements.

New Assembly Requirements

For the first time, federal law mandates that manufactured products must undergo final assembly in the United States. This closes a significant loophole where products could be assembled overseas using American components and still qualify under previous rules.

Domestic Content Thresholds

BABA establishes specific domestic content requirements that will fundamentally reshape global supply chains. Products must contain components where more than 55% of the total cost derives from materials mined, produced, or manufactured in the United States.

Unified Federal Standards

Rather than having different agencies interpret Buy America requirements differently, BABA creates consistent standards across all federal infrastructure programs, eliminating confusion and regulatory arbitrage.

Implementation Timeline: Critical Dates Ahead

The rollout of BABA requirements follows a carefully structured timeline designed to give industry time to adapt:

  • March 17, 2025: Foundation Phase
  • This initial implementation date establishes the regulatory framework and ensures existing Buy America rules for iron and steel remain fully enforced. All federally funded projects initiated after this date must demonstrate proper product classification and begin documentation processes for compliance verification.
  • October 1, 2025: Assembly Requirement Takes Effect
  • The most immediately impactful change occurs when the final assembly requirement becomes mandatory. The general waiver that previously allowed foreign-assembled products expires, meaning all manufactured products must complete their final assembly on American soil. This deadline will force many manufacturers to either relocate operations or exit the federal infrastructure market entirely.
  • October 1, 2026: Full Domestic Content Implementation
  • The final phase introduces the 55% domestic content threshold, representing the most challenging compliance hurdle for many products. This requirement will fundamentally alter component sourcing strategies and may significantly impact product availability and pricing across the industry.

Why These Changes Matter Now

The timing of BABA implementation coincides with unprecedented federal infrastructure investment. The IIJA allocates over $1.2 trillion for infrastructure improvements over five years, creating both opportunities and challenges for the industry.

State Departments of Transportation are already beginning to incorporate BABA requirements into their project planning processes. Many are discovering that products they've relied on for years may not meet new compliance standards, forcing them to identify alternative suppliers or redesign project specifications.

The end of the Manufactured Products General Waiver represents perhaps the most significant shift. This blanket exception previously allowed agencies to use non-compliant products when domestic alternatives were unavailable or cost-prohibitive. Moving forward, any exceptions must be product-specific, time-limited, and publicly justified – a much higher bar that will dramatically reduce the use of foreign-manufactured infrastructure products.

Industry Transformation in Progress

These regulatory changes are already reshaping the infrastructure industry in profound ways:

  • Manufacturing Location Decisions: Companies are evaluating whether to relocate assembly operations to the United States or exit federal contracting markets entirely. This has created both opportunities for domestic manufacturers and supply chain disruptions for established international suppliers.
  • Supply Chain Restructuring: Even companies with US assembly operations must now trace their component supply chains to ensure domestic content thresholds are met. This level of documentation and verification represents a new operational challenge for most manufacturers.
  • Project Planning Complexity: State DOTs and local agencies must now evaluate not just the technical specifications and cost of infrastructure products, but also their compliance status under evolving federal requirements.

Understanding Waivers and Exceptions

In some cases, exceptions may be granted, but they are narrowly defined:

  • The waiver must serve the public interest, or
  • The required materials are not reasonably available in the U.S., or
  • Using domestic materials would increase overall project cost by more than 25%

All waivers must be:

  • Product-specific
  • Time-limited
  • Justified and publicly posted

If you're unsure about your compliance obligations, it's essential to review funding sources, consult with your agency or DOT, and work with vendors who understand the documentation requirements.

Preparing for the Transition

Organizations involved in federally funded infrastructure projects should begin preparation immediately:

  1. Understand Your Current Supply Chain: Products that seem domestic may rely heavily on foreign components, while some international suppliers may be further along in compliance planning than expected.
  2. Prepare for Enhanced Documentation: BABA compliance isn't just about sourcing – it requires detailed recordkeeping and verification processes that many agencies haven't previously maintained.
  3. Evaluate Vendor Relationships: Long-term partnerships with non-compliant suppliers may become impossible to maintain for federal projects, requiring agencies to identify and qualify new sources.
  4. Plan Budget Impacts: Account for potential cost increases and reduced competition during the transition period. While BABA aims to strengthen domestic manufacturing long-term, short-term disruptions are likely as markets adjust.
  5. Monitor Ongoing Guidance: Stay current with updates from FHWA and your state DOT for ongoing clarifications and implementation details.

Conclusion

At Pelco, we recognize that these changes represent both challenges and opportunities for the infrastructure community. Our commitment to domestic manufacturing positions us to support agencies navigating this transition while maintaining the quality and reliability that critical infrastructure demands.

The success of BABA implementation will depend on collaboration between manufacturers, agencies, and contractors to develop practical solutions that meet both regulatory requirements and operational needs. By understanding these changes early and planning accordingly, infrastructure professionals can ensure project success while supporting the broader goal of strengthening American manufacturing capabilities.

The Build America, Buy America Act isn't just changing procurement rules – it's reshaping how America builds its infrastructure future. Organizations that understand and prepare for these changes will be best positioned to succeed in this new regulatory environment.