Washington Revised Code Title 49. Labor Regulations § 49.58.020. Wage discrimination due to gender prohibited--Penalty--Civil recovery (Effective until July 1, 2025)

(1) Any employer in this state who discriminates in any way in providing compensation based on gender between similarly employed employees of the employer is guilty of a misdemeanor. If any employee receives less compensation because of discrimination on account of gender in violation of this section, that employee is entitled to the remedies in RCW 49.58.060 and 49.58.070. In such action, however, the employer shall be credited with any compensation which has been paid to the employee upon account.

(2) For purposes of this section, employees are similarly employed if the individuals work for the same employer, the performance of the job requires similar skill, effort, and responsibility, and the jobs are performed under similar working conditions. Job titles alone are not determinative of whether employees are similarly employed.