46 C.F.R. § 151.03-49

Sounding tube.

Last amended: 2016Year: 2026Length: 42 wordsOfficial source

Cite as 46 C.F.R. § 151.03-49 (2026)

This is an unperforated tube fitted to an ullage hole, secured so as to be vapor tight to the underside of the tank top open at the bottom, and extending to within 18 inches or less of the bottom of the tank.
46 C.F.R. § 151.03-49: Sounding tube. | Justis AI