Rule 34(g) · Maneuvering & warning
Leaving a dock or berth (Inland)
One prolonged blast sounded by a power-driven vessel when leaving a dock or berth — Inland Rules only.
You hear: 1 prolonged blast.
Meaning
“When a power-driven vessel is leaving a dock or berth, she shall sound one prolonged blast.” It warns traffic that a vessel is emerging into the waterway. There is no equivalent signal in the International Rules.
Inland Rules only — your active setting is International.
Key facts
- Sounded by
- Power-driven vessel leaving a dock or berth
- Repeated
- Not a repeating signal — sounded when the situation calls for it
- Applies under
- US Inland only
- Notation
- —
Related signals
Source: Rule 34(g) — USCG Navigation Rules (International & Inland)
Rule text is reproduced from the public-domain USCG Navigation Rules. Audio is synthesized to Rule 32 timings.