RCW 7.80.050
Notice of infraction -- Issuance, service, filing.
(1) A civil infraction proceeding is initiated by the issuance, service, and filing of a notice of civil infraction.
(2) A notice of civil infraction may be issued by an enforcement officer when the civil infraction occurs in the officer's presence.
(3) A court may issue a notice of civil infraction if an enforcement officer files with the court a written statement that the civil infraction was committed in the officer's presence or that the officer has reasonable cause to believe that a civil infraction was committed.
(4) Service of a notice of civil infraction issued under subsection (2) or (3) of this section shall be as provided by court rule. Until such a rule is adopted, service shall be as provided in *JTIR 2.2(c)(1) and (3), as applicable.
(5) A notice of infraction shall be filed with a court having jurisdiction within forty-eight hours of issuance, excluding Saturdays, Sundays, and holidays. A notice of infraction not filed within the time limits prescribed in this section may be dismissed without prejudice.
http://www.leg.wa.gov/RCW/index.cfm?section=7.80.050&fuseaction=section