Rules of the Road: International-inland, Aug. 1, 1972

abaft the beam addition ahead amended anchor applicable approaching authorized barges best be seen blast boats Buoy canalboats carry channel character classes clear collision Commander compass comply construction course danger direction displayed distance District dredge duty exempted extremity Federal feet in length fishing fixed forward give green light Harbor head height horizon INLAND RULES inland waters INTERNATIONAL RULES keep lantern least least 2 miles less light prescribed line drawn lower Marine means miles motorboat navigation night operations passing penalty person pilot placed points port side position power-driven vessel prescribed in Rule prevent range light red light regulations respect River sailing vessel seaplane seas separation shapes short sidelights signal sound speed starboard side Stat steam vessel thence tion towing tributaries unbroken light underway United USCGC vertical line visible waters whistle white light