Washington Revised Code Title 9A. Washington Criminal Code § 9A.04.040. Classes of crimes

(1) An offense defined by this title or by any other statute of this state, for which a sentence of imprisonment is authorized, constitutes a crime. Crimes are classified as felonies, gross misdemeanors, or misdemeanors.

(2) A crime is a felony if it is so designated in this title or by any other statute of this state or if persons convicted thereof may be sentenced to imprisonment for a term in excess of one year. A crime is a misdemeanor if it is so designated in this title or by any other statute of this state or if persons convicted thereof may be sentenced to imprisonment for no more than ninety days. Every other crime is a gross misdemeanor.