---
kind: "section"
citation: "40 C.F.R. § 72.3"
title: "40"
number: "72.3"
heading: "Measurements, abbreviations, and acronyms."
url: "https://uscodex.org/cfr/40/72.3"
---

# §72.3. Measurements, abbreviations, and acronyms.


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


## Notes

### Amendments

[58 FR 3650, Jan. 11, 1993, as amended at 64 FR 28588, May 26, 1999]

### Authority

Authority: 42 U.S.C. 7401, 7403, 7410, 7411, 7426, 7601, et seq.

### Source

Source: 58 FR 3650, Jan. 11, 1993, unless otherwise noted.

### Amendments

[58 FR 3650, Jan. 11, 1993, as amended at 64 FR 28588, May 26, 1999]