---
kind: "section"
citation: "40 C.F.R. § 1065.735"
title: "40"
number: "1065.735"
heading: "Diesel exhaust fluid."
url: "https://uscodex.org/cfr/40/1065.735"
---

# §1065.735. Diesel exhaust fluid.

- (a) Use commercially available diesel exhaust fluid that represents the product that will be used in your in-use engines.
- (b) Diesel exhaust fluid for testing must generally conform to the specifications referenced in the definition of “diesel exhaust fluid” in [§ 1065.1001](/cfr/40/1065.1001.md). Use marine-grade diesel exhaust fluid only for marine engines.

## Notes

### Amendments

[81 FR 74191, Oct. 25, 2016]

### Authority

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

### Source

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

### Amendments

[81 FR 74191, Oct. 25, 2016]