---
kind: "section"
citation: "33 C.F.R. § 183.588"
title: "33"
number: "183.588"
heading: "Slosh test."
url: "https://uscodex.org/cfr/33/183.588"
---

# §183.588. Slosh test.


A fuel tank is tested by performing the following procedures in the following order:

- (a) Perform the static pressure test under [§ 183.580](/cfr/33/183.580.md).
- (b) Perform the pressure impulse test under [§ 183.586](/cfr/33/183.586.md).
- (c) **Secure the tank to the platform of a tank rocker assembly.**
- (d) **Fill the tank to one-half capacity with water.**
- (e) **Cap and seal each opening in the tank.**
- (f) Apply 500,000 cycles or rocking motion 15 degrees to each side of the tank centerline at the rate of 15 to 20 cycles a minute. The axis of rotation of the rocker and fuel tank must be perpendicular to the centerline of the tank length at a level six inches or less above or below the tank's bottom.
- (g) Perform the static pressure test under [§ 183.580](/cfr/33/183.580.md).

## Notes

### Amendments

[CGD 74-209, 42 FR 5950, Jan. 31, 1977, as amended by USCG-1999-5832, 64 FR 34716, June 29, 1999]

### Source

Source: CGD 74-209, 42 FR 5950, Jan. 31, 1977, unless otherwise noted.

### Authority

Authority: 46 U.S.C. 4302; Pub. L. 103-206, 107 Stat. 2439; and Department of Homeland Security Delegation No. 0170.1, para. II, (92)(b). Subpart E is also authorized by Pub. L. 114-120, 130 Stat. 27

### Source

Source: CGD 72-61R, 37 FR 15782, Aug. 4, 1972, unless otherwise noted.

### Amendments

[CGD 74-209, 42 FR 5950, Jan. 31, 1977, as amended by USCG-1999-5832, 64 FR 34716, June 29, 1999]