# 49 C.F.R. § 663.9 (2026): Audit limitations

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_9

## Section

- **Citation:** 49 C.F.R. § 663.9 (2026)
- **Heading:** Audit limitations
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 49 CFR: Transportation / Chapter VI: FEDERAL TRANSIT ADMINISTRATION, DEPARTMENT OF TRANSPORTATION / Part 663: PRE-AWARD AND POST-DELIVERY AUDITS OF ROLLING STOCK PURCHASES / Subpart A: General / § 663.9: § 663.9   Audit limitations.

## Text

(a) An audit under this part is limited to verifying compliance with
(1) Applicable Buy America requirements [section 165 of the Surface Transportation Assistance Act of 1982, as amended,]; and
(2) Solicitation specification requirements of the recipient.
(b) An audit under this part includes, where appropriate, a copy of a manufacturer's self certification information that the vehicle complies with Federal Motor Vehicle Safety Standards or a certification that such standards are inapplicable.
(c) An audit conducted under this part is separate from the single annual audit requirement established by Office of Management and Budget Circular A-128, “Audits of State and Local Governments,” dated May 16, 1985.

## Nearby sections

- [49 C.F.R. § 663.1 (2026) § 663.1   Purpose.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_1.md)
- [49 C.F.R. § 663.3 (2026) § 663.3   Scope.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_3.md)
- [49 C.F.R. § 663.5 (2026) § 663.5   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_5.md)
- [49 C.F.R. § 663.7 (2026) § 663.7   Certification of compliance to FTA.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_7.md)
- [49 C.F.R. § 663.9 (2026) § 663.9   Audit limitations.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_9.md)
- [49 C.F.R. § 663.11 (2026) § 663.11   Audit financing.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_11.md)
- [49 C.F.R. § 663.13 (2026) § 663.13   Buy America requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_13.md)
- [49 C.F.R. § 663.15 (2026) § 663.15   Compliance.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_15.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T49_P663_S663_9. Check the current official text before relying on it. Not legal advice.