---
kind: "section"
citation: "40 C.F.R. § 1066.901"
title: "40"
number: "1066.901"
heading: "Applicability and general provisions."
url: "https://uscodex.org/cfr/40/1066.901"
---

# §1066.901. Applicability and general provisions.


This subpart describes how to measure evaporative and refueling emissions from test vehicles. The provisions of [§§ 1066.910 through 1066.930](/cfr/40/1066.910..1066.930.md) include general provisions for equipment and calculations related to evaporative and refueling emissions. The provisions of [§§ 1066.950 through 1066.985](/cfr/40/1066.950..1066.985.md) describe provisions that apply specifically to motor vehicles subject to standards under [40 CFR part 86](/cfr/40/part86.md), subpart [S](/cfr/40/subpartS.md), or [40](/cfr/40/subpart40.md) CFR [part 1037](/cfr/40/part1037.md).


## Notes

### Authority

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

### Source

Source: 79 FR 23823, Apr. 28, 2014, unless otherwise noted.