---
kind: "section"
citation: "40 C.F.R. § 139.12"
title: "40"
number: "139.12"
heading: "Boilers."
url: "https://uscodex.org/cfr/40/139.12"
---

# §139.12. Boilers.

- (a) The requirements in paragraphs [(b)](#b) and [(c)](#c) of this section apply to discharges resulting from boiler blowdown.
- (b) The discharge from boiler blowdown must be minimized in port.
- (c) Additional standards applicable to discharges from boilers when a vessel is operating in federally-protected waters are contained in [§ 139.40(d)](/cfr/40/139.40.md?p=d).

## Notes

### Authority

Authority: 33 U.S.C. 1251 et seq.

### Source

Source: 89 FR 82131, Oct. 9, 2024, unless otherwise noted.