# 49 CFR § 663.9: Audit limitations

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-49-663.9

## Section

- **Citation:** 49 CFR § 663.9
- **Heading:** Audit limitations
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 49—Transportation > Subtitle B—Other Regulations Relating to Transportation > CHAPTER VI—FEDERAL TRANSIT ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > PART 663—PRE-AWARD AND POST-DELIVERY AUDITS OF ROLLING STOCK PURCHASES > Subpart A—General

## 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 CFR § 663.1 § 663.1 Purpose.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.1.md)
- [49 CFR § 663.3 § 663.3 Scope.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.3.md)
- [49 CFR § 663.5 § 663.5 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.5.md)
- [49 CFR § 663.7 § 663.7 Certification of compliance to FTA.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.7.md)
- [49 CFR § 663.9 § 663.9 Audit limitations.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.9.md)
- [49 CFR § 663.11 § 663.11 Audit financing.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.11.md)
- [49 CFR § 663.13 § 663.13 Buy America requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.13.md)
- [49 CFR § 663.15 § 663.15 Compliance.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.15.md)
- [49 CFR § 663.21 § 663.21 Pre-award audit requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.21.md)
- [49 CFR § 663.23 § 663.23 Description of pre-award audit.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.23.md)
- [49 CFR § 663.25 § 663.25 Pre-award Buy America certification.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.25.md)
- [49 CFR § 663.27 § 663.27 Pre-award purchaser's requirements certification.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.27.md)
- [49 CFR § 663.31 § 663.31 Post-delivery audit requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.31.md)
- [49 CFR § 663.33 § 663.33 Description of post-delivery audit.](https://www.frixlaw.com/law-library/statutes/ecfr-49-663.33.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-49-663.9. Check the current official text before relying on it. Not legal advice.