Question 397Navigation General

The correct answer is C) Flashing amber. A flashing amber light signal indicates that you may approach the lock. This is in accordance with the U.S. Coast Guard Navigation Rules and Regulations, which state that a flashing amber light is used to signal that vessels may approach and enter the lock chamber. The other answer choices are incorrect because: A) Steady amber typically means caution, B) Flashing red indicates do not enter, and D) Steady green usually means safe to proceed, but not specifically for approaching a lock.