---
kind: "section"
citation: "40 C.F.R. § 427.71"
title: "40"
number: "427.71"
heading: "Specialized definitions."
url: "https://uscodex.org/cfr/40/427.71"
---

# §427.71. Specialized definitions.


For the purpose of this subpart:

- (a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in [40 CFR part 401](/cfr/40/part401.md) shall apply to this subpart.
- (b) The abbreviation “mpc” shall mean 1000 pieces of floor tile.
- (c) The term “pieces” shall mean floor tile measured in the standard size of 12″ × 12″ × 3/32″.
- (d) COD shall mean COD added to the process waste water.

## Notes

### Authority

Authority: Secs. 301, 304 (b) and (c), 306 (b) and (c), 307(c), Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251, 1311, 1314 (b) and (c), 1316 (b) and (c), 1317(c); 86 Stat. 816 et seq.; Pub. L. 92-500.

### Source

Source: 39 FR 7527, Feb. 26, 1974, unless otherwise noted.