Rules of the Road · Inland Lights Differences
Under the Inland Rules, what light arrangement must a power-driven vessel towing astern display when the tow exceeds 200 meters in length?
- ATwo masthead lights in a vertical line and a diamond shape
- BThree masthead lights in a vertical line forward
- CTwo masthead lights, sidelights, sternlight, and three all-round white lights in a vertical line
- DThree masthead lights in a vertical line and a diamond shape by day✓ Correct
Explanation
Under Inland Rule 24(a), when the length of the tow exceeds 200 meters, the towing vessel shows three masthead lights in a vertical line. By day, a diamond shape is exhibited where it can best be seen. This matches the 72 COLREGS requirement in Rule 24(a).
Authority: Inland Rule 24(a)
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