---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "subtB/chVI/part661"
level: "part"
label: "Part 661"
heading: "Buy America Requirements"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/49/subtB-chVI-part661"
sections_count: 15
---

# Part 661 — Buy America Requirements

Title 49 C.F.R. — Transportation › Subtitle B — Other Regulations Relating to Transportation › Chapter VI — Federal Transit Administration, Department of Transportation

## Sections

- [§661.1. Applicability.](/cfr/49/661.1.md)
- [§661.3. Definitions.](/cfr/49/661.3.md)
- [§661.5. General requirements.](/cfr/49/661.5.md)
- [§661.6. Certification requirements for procurement of steel or manufactured products.](/cfr/49/661.6.md)
- [§661.7. Waivers.](/cfr/49/661.7.md)
- [§661.9. Application for waivers.](/cfr/49/661.9.md)
- [§661.11. Rolling stock procurements.](/cfr/49/661.11.md)
- [§661.12. Certification requirement for procurement of buses, other rolling stock and associated equipment.](/cfr/49/661.12.md)
- [§661.13. Grantee responsibility.](/cfr/49/661.13.md)
- [§661.15. Investigation procedures.](/cfr/49/661.15.md)
- [§661.17. Failure to comply with certification.](/cfr/49/661.17.md)
- [§661.18. Intentional violations.](/cfr/49/661.18.md)
- [§661.19. Sanctions.](/cfr/49/661.19.md)
- [§661.20. Rights of parties.](/cfr/49/661.20.md)
- [§661.21. State Buy America provisions.](/cfr/49/661.21.md)