A capacity plate is a device that helps enforce the number of passengers on board. It is typically located at deck level near the doors, though it may also be mounted on the wall or ceiling. The contents of a capacity plate may vary depending on the type of boat. For example, boats under 20 feet long must have a capacity plate, while sailboats and personal watercraft do not need one. Capacity plates are located near the helm or on a boat's transom. Boat weight is regulated by the state and is meant to decrease the likelihood of overloading a boat or causing an accident. If you are in one of these states, exceeding the weight limit might result in a ticket; otherwise, it is not enforced.