Stand-up PWC are a type of personal watercraft (PWC) available since the 1970s. They (usually) have a pivoting handlepole and standing tray area that requires the operator to stand while riding instead of sitting. This is in contrast to the more frequently seen "sit-down" type of PWC. Both these terms are jargon used by PWC enthusiasts to distinguish between these primary two types. However, marine regulatory groups, such as the United States Coast Guard, foremost use passenger capacity, rather than riding style, to make distinctions.