---
kind: "section"
citation: "46 C.F.R. § 153.1122"
title: "46"
number: "153.1122"
heading: "Discharges of NLS residue from tank washing other than a prewash: Categories A, B, and C."
url: "https://uscodex.org/cfr/46/153.1122"
---

# §153.1122. Discharges of NLS residue from tank washing other than a prewash: Categories A, B, and C.


Tank washings that do not result from a prewash and that contain Category A, B, or C NLS residues must be discharged to a reception facility or discharged to the sea under [§ 153.1126](/cfr/46/153.1126.md) or [§ 153.1128](/cfr/46/153.1128.md) except those tank washings resulting from washing a tank that has been cleaned following a ventilation procedure in the approved Procedures and Arrangements Manual.


## Notes

### Source

Source: CGD 81-101, 52 FR 7785, Mar. 12, 1987, unless otherwise noted.

### Authority

Authority: 46 U.S.C. 3703; Department of Homeland Security Delegation No. 0170.1. Section 153.40 issued under 49 U.S.C. 5103. Sections 153.470 through 153.491, 153.1100 through 153.1132, and 153.1600 through 153.1608 also issued under 33 U.S.C. 1903 (b).

### Source

Source: CGD 73-96, 42 FR 49027, Sept. 26, 1977, unless otherwise noted.