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If less than 65.6 feet (20 meters) long, these vessels must exhibit the lights as shown in Figure 1. Remember, power-driven vessels include sailboats operating under engine power.

Fig. 1: Navigation lights on power-driven vessels less than 65.6 feet

The required lights are:

  • Red and green sidelights visible from a distance of at least one mile away on a dark, clear night.
  • An all-round white light (if less than 39.4 feet long) or both a masthead light and a sternlight. These lights must be visible from a distance of at least two miles away on a dark, clear night. The all-round white light (or the masthead light) must be at least 3.3 feet (one meter) higher than the sidelights.