Lights must be used from dusk to dawn and in times of restricted visibility. Which period is covered?

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Multiple Choice

Lights must be used from dusk to dawn and in times of restricted visibility. Which period is covered?

Explanation:
From dusk to dawn is the period when lights must be used. This spans from sunset (dusk) to sunrise (dawn) when it’s dark enough that vessels need to be visible to others. The rule also requires lights in times of restricted visibility (like fog or heavy rain), but that doesn’t change the daily window—the standard window remains dusk to dawn. The other options describe daylight or inappropriate portions of the day, so they don’t match the requirement.

From dusk to dawn is the period when lights must be used. This spans from sunset (dusk) to sunrise (dawn) when it’s dark enough that vessels need to be visible to others. The rule also requires lights in times of restricted visibility (like fog or heavy rain), but that doesn’t change the daily window—the standard window remains dusk to dawn. The other options describe daylight or inappropriate portions of the day, so they don’t match the requirement.

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