---
kind: "section"
citation: "33 C.F.R. § 157.222"
title: "33"
number: "157.222"
heading: "Pump and piping arrangements."
url: "https://uscodex.org/cfr/33/157.222"
---

# §157.222. Pump and piping arrangements.

- (a) Dedicated clean ballast tanks must be connected to the least practicable:
  - (1) Number of pumps; and
  - (2) **Amount of piping.**
- (b) Each piping system that is arranged to convey clean ballast and cargo must be designed to be flushed to the slop tank with water.
- (c) The piping system of each dedicated clean ballast tank must be arranged so that oily water does not enter any dedicated clean ballast tank when the piping system is flushed.
- (d) The piping system of each dedicated clean ballast tank must have at least two valves that isolate that tank from each cargo tank.
- (e) The piping system of the dedicated clean ballast tanks must have a sample point that is located in a vertical section of discharge piping.

## Notes

### Source

Source: CGD 77-058b, 45 FR 43714, June 30, 1980, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546.

### Source

Source: CGD 74-32, 40 FR 48283, Oct. 14, 1975, unless otherwise noted.