StacksVerified U.S. regulatory reference

46 CFR §78.17-10

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)Where fitted, the complete loudspeaker system shall be tested at least once every week. This test shall be made by an officer of the vessel.
  2. (b)The date of the test and the condition of the equipment shall be noted in the official logbook.