Where on a boat has railings that are 3 inches high. Under Missouri law where may passengers legally ride?

Under Missouri law, passengers may legally ride in areas of a boat where railings are at least 3 inches high, typically found on the deck or other designated passenger areas. These safety railings are meant to prevent passengers from falling overboard. However, specific regulations can vary depending on the type of vessel and its intended use, so it's always advisable for boat operators to ensure compliance with local laws.