Required Lights: Sailboats When Underway

If less than 65.6 feet long, these vessels must exhibit the lights as shown in Figure 2. The required lights are:

• Red and green sidelights visible from a distance of at least two miles away—or if less than 39.4 feet long, at least one mile away—on a dark, clear night.
• A sternlight visible from at least two miles away.