Two boats are operating near each other. Which boat that must maintain its course and speed?

In maritime navigation, the "stand-on vessel" is the boat that must maintain its course and speed when encountering another vessel. This typically refers to the boat that has the right of way, while the other vessel, known as the "give-way vessel," is required to alter its course and/or speed to avoid a collision. The determination of which boat is the stand-on vessel depends on various factors, including their type, size, and the angle of approach.