HCS HB 435 -- RAILROAD GRADE CROSSINGS (Engler) This substitute requires operators of commercial motor vehicles, other than those required to stop by law, to approach a railroad grade crossing at a rate of speed which will permit the vehicle to stop before reaching the nearest rail of a crossing and not drive upon or over a crossing until due caution has been taken to ascertain that the course is clear. FISCAL NOTE: No impact on state funds.Copyright (c) Missouri House of Representatives