A jack-up drilling rig being towed must __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — turn off all lights that interfere with the navigation lights
COLREGS Rule 20(b) states that none of the required navigation lights shall be dazzled or obscured, nor shall any additional lights be exhibited that can be mistaken for navigation lights, degrade their visibility, or impair distinctive character.
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