---
kind: "section"
citation: "40 C.F.R. § 1065.801"
title: "40"
number: "1065.801"
heading: "Applicability."
url: "https://uscodex.org/cfr/40/1065.801"
---

# §1065.801. Applicability.

- (a) This subpart applies for testing with oxygenated fuels. Unless the standard-setting part specifies otherwise, the requirements of this subpart do not apply for fuels that contain less than 25% oxygenated compounds by volume. For example, you generally do not need to follow the requirements of this subpart for tests performed using a fuel containing 10% ethanol and 90% gasoline, but you must follow these requirements for tests performed using a fuel containing 85% ethanol and 15% gasoline.
- (b) [Section 1065.805](/cfr/40/1065.805.md) applies for all other testing that requires measurement of any alcohols or carbonyls.
- (c) This subpart specifies sampling procedures and calculations that are different than those used for non-oxygenated fuels. All other test procedures of this part 1065 apply for testing with oxygenated fuels.

## Notes

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 70 FR 40516, July 13, 2005, unless otherwise noted.