---
kind: "section"
citation: "40 C.F.R. § 97.903"
title: "40"
number: "97.903"
heading: "Measurements, abbreviations, and acronyms."
url: "https://uscodex.org/cfr/40/97.903"
---

# §97.903. Measurements, abbreviations, and acronyms.


Measurements, abbreviations, and acronyms used in this subpart are defined as follows:


## Notes

### Source

Source: 82 FR 48364, Oct. 17, 2017, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401, 7403, 7410, 7426, 7491, 7601, and 7651, et seq.

### Source

Source: 65 FR 2727, Jan. 18, 2000, unless otherwise noted. 71 FR 25396, 25422, and 25443, Apr. 28, 2006