---
kind: "section"
citation: "40 C.F.R. § 420.44"
title: "40"
number: "420.44"
heading: "New source performance standards (NSPS)."
url: "https://uscodex.org/cfr/40/420.44"
---

# §420.44. New source performance standards (NSPS).


The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.

- (a) **Basic oxygen furnace steelmaking—semi-wet; and electric arc furnace steelmaking—semi-wet.** No discharge of process wastewater pollutants to navigable waters.
- (b) **Basic oxygen furnace steelmaking—wet-suppressed combustion.**
- (c) **Basic oxygen furnace steelmaking—wet open combustion; and electric arc furnace steelmaking—wet.**

## Notes

### Amendments

[47 FR 23284, May 27, 1982, as amended at 67 FR 64267, Oct. 17, 2002]

### Authority

Authority: 33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342, and 1361.

### Source

Source: 47 FR 23284, May 27, 1982, unless otherwise noted.

### Amendments

[47 FR 23284, May 27, 1982, as amended at 67 FR 64267, Oct. 17, 2002]