46 U.S. Code § 11506 - Carrying sheath knives

A seaman in the merchant marine may not wear a sheath knife on board a vessel without the consent of the master. The master of a vessel of the United States shall inform each seaman of this prohibition before engagement. A master failing to advise a seaman is liable to the United States Government for a civil penalty of $50.

(Pub. L. 98–89, Aug. 26, 1983, 97 Stat. 584.)

Historical and Revision Notes
Revised section	Source section (U.S. Code)
11506	46:710

Section 11506 prohibits a merchant seaman from carrying a sheath knife without permission of the master, and penalizes a master who does not advise a seaman of this provision.