^dsg^" 2007 SeaDoo Challenger 230 SE "(dsg) in Austin, TX

and that the dimishing numbers of pre-1998 watercraft in use continue to emit substantial pollution.Against this, industry groups such as the Personal Watercraft Industry Association point out that environmental groups continue to cite pollution levels of pre-regulation watercraft and ignore the improvements made to newer models; and furthermore, that personal watercraft are unfairly singled out when they are no more polluting than other powered boats.