In accordance with RCW 49.58.100, an employer may confirm an individual's wage or salary history if:

(1) The individual has voluntarily disclosed their wage or salary history; or

(2) After the employer has negotiated an offer and made an offer of employment including compensation to the individual. Negotiation includes an offer of employment with compensation by the employer and acceptance of the offer by the applicant.

For the purposes of this section "employer" also includes those employers with fewer than 15 employees.