---
kind: "section"
citation: "40 C.F.R. § 86.213"
title: "40"
number: "86.213"
heading: "Fuel specifications."
url: "https://uscodex.org/cfr/40/86.213"
---

# §86.213. Fuel specifications.

- (a) **Gasoline.** Use a gasoline test fuel with ethanol (low-level blend only) or without ethanol as follows:
  - (1) You must certify using service accumulation fuel and E10 test fuel as specified in [§ 86.113](/cfr/40/86.113.md) for any vehicles required to use a low-level ethanol-gasoline blend test fuel for measuring exhaust emissions. You may use this test fuel any time earlier than we specify.
  - (2) You may use the test fuel specified in this [paragraph (a)(2)](#a-2) for vehicles that are not yet subject to exhaust testing with an ethanol-blend test fuel under [§ 86.113](/cfr/40/86.113.md). Manufacturers may certify based on this fuel using carryover data until testing with the ethanol-blend test fuel is required. The following specifications apply for gasoline test fuel without ethanol:
  - (3) Manufacturers may use the E0 gasoline test fuel specified in [§ 86.113](/cfr/40/86.113.md) for certification instead of the fuel specified in [paragraph (a)(2)](#a-2) of this section, as long as the change in test fuel does not cause cold temperature NMHC, CO, or CO2 emissions to decrease; manufacturers must keep records documenting these emission effects and make them available to EPA upon request.
  - (4) We may approve alternate fuel specifications that are substantially equivalent to those in [paragraph (a)(2)](#a-2) of this section for a manufacturer's testing.
- (b) [Reserved]

## Notes

### Amendments

[79 FR 23698, Apr. 28, 2014, as amended at 80 FR 9103, Feb. 19, 2015; 86 FR 34366, June 29, 2021; 89 FR 28157, Apr. 18, 2024]

### Source

Source: 79 FR 23698, Apr. 28, 2014, unless otherwise noted.

### Authority

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

### Amendments

[79 FR 23698, Apr. 28, 2014, as amended at 80 FR 9103, Feb. 19, 2015; 86 FR 34366, June 29, 2021; 89 FR 28157, Apr. 18, 2024]