Sterling Publishing. p. 124. ISBN 1-4027-4302-5. ^ «Jet Ski Evolution». . All major PWC manufacturers warn about this risk and recommend that passengers wear wet suit bottoms or equivalent protection. Environmental groups such as the Surfrider Foundation and the Bluewater Network claim that more rapid progress could be made, and that the diminishing numbers of pre-1998 watercraft in use continue to emit substantial pollution.
Personal water craft. (pictured Tyson extreme Collins) Racing scene A personal water craft (PWC), also called water scooter, and comically a boatercycle, is a recreational watercraft that the rider sits or stands on, rather than inside of, as in a boat. PWCs have two style categories. The 1990 amendments to the Clean Air Act allowed the U.S. Environmental Protection Agency to begin regulating all recreational marine engines including PWC, as well as other off-road internal combustion engines. Both Yamaha and Kawasaki continue to sell stand up models but it is a small percentage of the overall market. P1 AquaX is considered the best personal watercraft racing series in the world, due to its high level of competition. Edited by Armstrong JR, Tucker WE; London Staples, 1964; McCarthy GF. Hazards of water-skiing.
The American Waterski Racing Association recommends that all of their racers wear wet suit bottoms for this same reason. Lifeguards use PWCs equipped with rescue platforms to rescue water users who get into difficulties and carry them back to shore. Rescuers use PWCs to pick up flood survivors. PWCs are used for law enforcement.