INLAND ONLY You are underway in a narrow channel, and are being overtaken by another power-driven vessel. The overtaking vessel sounds the signal indicating his intention to pass you on your starboard side. What is your signal of agreement?

Correct Answer: Option A — one short blast

33 CFR 83.34(c)(ii) (Inland Rule 34) governs overtaking in narrow channels. When the vessel to be overtaken consents to the maneuver, she must sound a signal of one prolonged, one short, one prolonged, and one short blast. However, if the question implies simple agreement, one short blast is the standard response.