Wash. Rev. Code § 50A.25.110
The paid family and medical leave program of the department and the long-term services and supports trust administering agencies may disclose information or records deemed private and confidential under this chapter to any private person or organization, and by extension, the agents of any private person or organization, when the disclosure is necessary to permit private contracting parties to assist in the operation, management, and implementation of the program in instances where certain departmental functions may be delegated to private parties to increase the department's efficiency or quality of service to the public. The private person or organization shall use the information or records solely for the purpose for which the information was disclosed and shall be bound by the same rules of privacy and confidentiality as department employees.
RCW 50A.25.110