Wash. Rev. Code § 79A.60.050
(1) When the death of any person ensues within three years as a proximate result of injury proximately caused by the operating of any vessel by any person, the operator is guilty of homicide by watercraft if he or she was operating the vessel:
[ 2000 c 11 s 94; 1998 c 219 s 1. Formerly RCW 88.12.029.]