---
kind: "section"
citation: "46 C.F.R. § 154.536"
title: "46"
number: "154.536"
heading: "Cargo tank gauging and measuring connections."
url: "https://uscodex.org/cfr/46/154.536"
---

# §154.536. Cargo tank gauging and measuring connections.


Unless the outward flow from a cargo tank is less than the flow through a circular hole of 1.4 mm (0.055 in.) in diameter, cargo tank connections for gauging or measuring devices must have the excess flow, shut-off, or quick-closing shut-off valves under [§ 154.530](/cfr/46/154.530.md) or [§ 154.532](/cfr/46/154.532.md).


## Notes

### Authority

Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.