---
kind: "section"
citation: "46 C.F.R. § 64.83"
title: "46"
number: "64.83"
heading: "Hydrostatic test."
url: "https://uscodex.org/cfr/46/64.83"
---

# §64.83. Hydrostatic test.

- (a) The hydrostatic test required in [§ 64.77(c)](/cfr/46/64.77.md?p=c) includes—
  - (1) Closing each manhole and other openings by normal means of closure;
  - (2) Using wrenches or other tools that are used during normal operations to close the manhole and other openings;
  - (3) Using the same type of gaskets as used in service;
  - (4) If required for the inspection, removing tank insulation;
  - (5) Filling the tank with water and pressurizing to the test pressure indicated on the metal identification plate without leaking; and
  - (6) If fitted with an internal heating coil, the heating coil passing a hydrostatic test at a pressure of 200 psig or more or 50 percent or more above the rated pressure of the coil, whichever is greater.
- (b) If the tank passes the hydrostatic test required in [paragraph (a)](#a) of this section, the owner or his representative may stamp the date of the test and his initials on the metal identification plate required in [§ 64.53](/cfr/46/64.53.md).

## Notes

### Authority

Authority: 46 U.S.C. 3306, 3703; 49 U.S.C. App. 1804; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGD 73-172, 39 FR 22950, June 25, 1974, unless otherwise noted.