Bart Senior wrote:
INLAND

A barge of more than 50 meters long would be
required to show how many white anchor lights
when anchored in a Secretary of Transportatoin
approved "Special anchorage area"?

A. 4
B. 3
C. 2
D. 1


The key here is "designated anchorage area." In any other location, it
would be required to display lights at all 4 corners, but here it's only
required to show 1.

Corollary... what sort & how many lights must an anchored or moored
sailing vessel display when in a designated anchorage zone?

Fresh Breezes- Doug King