If the light list indicates that a dayboard is type NB, what should you expect to see?

A dayboard designated as type NB refers to a specific category of daymarks in the U.S. A day-mark of no lateral significance is used to indicate that the structure or object is not intended to mark the edges of a navigable channel or provide any information about the safe path for vessels. Instead, these dayboards can serve various purposes, such as indicating a hazard or simply marking a point of interest.

By identifying a dayboard as type NB, mariners understand that it does not convey any lateral navigation information, allowing vessel operators to use caution when approaching the area. This designation is essential for ensuring safe navigation, as it clarifies what the markings signify and helps prevent misunderstandings about navigation risks.