46 CFR 154.1320
§ 154.1320 Sighting ports, tubular gauge glasses, and flat plate type gauge glasses.
United States · 46 CFR — Shipping · Status: effective
Cite this
- Citation
- 46 CFR 154.1320, § 154.1320 Sighting ports, tubular gauge glasses, and flat plate type gauge glasses, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/229001
- Permanent ID
ys:prov:229001@1- SHA-256
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Full text
(a) Cargo tanks may have sighting ports as a secondary means of liquid level gauging in addition to the gauges under § 154.1305, if:
(1) The tank has a MARVS that is less than 69 kPa gauge (10 psig);
(2) The port has a protective cover and an internal scale; and
(3) The port is above the liquid level.
(b) Tubular gauge glasses must not be liquid level gauges for cargo tanks.
(c) Plate type gauge glasses must not be liquid level gauges for cargo tanks, except deck tanks if the gauge connections have excess flow valves.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.