---
kind: "section"
citation: "40 C.F.R. § 59.627"
title: "40"
number: "59.627"
heading: "How do I demonstrate that my emission family complies with evaporative emission standards?"
url: "https://uscodex.org/cfr/40/59.627"
---

# §59.627. How do I demonstrate that my emission family complies with evaporative emission standards?

- (a) For purposes of certification, your emission family is considered in compliance with an evaporative emission standard in [§ 59.611(a)](/cfr/40/59.611.md?p=a) if the test results from all portable fuel containers in the family that have been tested show measured emissions levels that are at or below the applicable standard.
- (b) Your emissions family is deemed not to comply if any container representing that family has test results showing an official emission level above the standard.
- (c) **Round the measured emission level to the same number of decimal places as the emission standard.** Compare the rounded emission levels to the emission standard.

## Notes

### Source

Source: 72 FR 8533, Feb. 26, 2007, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7414 and 7511b(e).

### Source

Source: 64 FR 48815, Sept. 11, 1998, unless otherwise noted.