What vessel is required to maintain its course and speed?

A vessel required to maintain its course and speed is typically referred to as a "stand-on vessel" in maritime navigation. According to the International Regulations for Preventing Collisions at Sea (COLREGs), this vessel has the right of way and should not alter its course or speed unless it is necessary to avoid a collision. Other vessels, known as "give-way vessels," must take action to avoid the stand-on vessel. This rule helps ensure safe navigation and reduces the risk of maritime accidents.