---
kind: "section"
citation: "40 C.F.R. § 438.10"
title: "40"
number: "438.10"
heading: "Applicability."
url: "https://uscodex.org/cfr/40/438.10"
---

# §438.10. Applicability.

- (a) This subpart applies to process wastewater directly discharged from facilities specified at [§ 438.1](/cfr/40/438.1.md).
- (b) This subpart applies to process wastewater discharges from oily operations (as defined at [§ 438.2(f)](/cfr/40/438.2.md?p=f) and appendix B of this part).
- (c) This subpart does not apply to process wastewater discharges from metal-bearing operations (as defined at [§ 438.2(d)](/cfr/40/438.2.md?p=d) and appendix C of this part).

## Notes

### Authority

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

### Source

Source: 68 FR 25735, May 13, 2003, unless otherwise noted.