# 40 CFR § 80.9: Rounding

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-80.9

## Section

- **Citation:** 40 CFR § 80.9
- **Heading:** Rounding
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 40—Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS > PART 80—REGULATION OF FUELS AND FUEL ADDITIVES > Subpart A—General Provisions

## Text

(a) Test results and calculated values reported to EPA under this part must be rounded according to 40 CFR 1090.50(a) through (d).
(b) Calculated values under this part may only be rounded when reported to EPA.
(c) Reported values under this part must be submitted using forms and procedures specified by EPA.
[88 FR 44563, July 12, 2023]

## Nearby sections

- [40 CFR § 80.1 § 80.1 Scope.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.1.md)
- [40 CFR § 80.2 § 80.2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.2.md)
- [40 CFR § 80.3 § 80.3 Acronyms and abbreviations.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.3.md)
- [40 CFR § 80.4 § 80.4 Right of entry; tests and inspections.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.4.md)
- [40 CFR § 80.5 § 80.5 Penalties.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.5.md)
- [40 CFR § 80.7 § 80.7 Requests for information.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.7.md)
- [40 CFR § 80.8 § 80.8 Sampling methods for gasoline, diesel fuel, fuel additives, and renewable fuels.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.8.md)
- [40 CFR § 80.9 § 80.9 Rounding.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.9.md)
- [40 CFR § 80.10 § 80.10 Addresses.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.10.md)
- [40 CFR § 80.11 § 80.11 Confidentiality of information.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.11.md)
- [40 CFR § 80.12 § 80.12 Incorporation by reference.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.12.md)
- [40 CFR § 80.35 § 80.35 Labeling of retail gasoline pumps; oxygenated gasoline.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.35.md)
- [40 CFR § 80.100 § 80.100 Scope and application.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.100.md)
- [40 CFR § 80.105 § 80.105 Biogas producers.](https://www.frixlaw.com/law-library/statutes/ecfr-40-80.105.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-80.9. Check the current official text before relying on it. Not legal advice.