For the purposes of this title:
(1) "Professional employer organization" means a person or entity that enters into an agreement with one or more client employers to provide professional employer services. "Professional employer organization" includes entities that use the term "staff leasing company," "permanent leasing company," "registered staff leasing company," "employee leasing company," "administrative employer," or any other name, when they provide professional employer services to client employers. The following are not classified as professional employer organizations: Independent contractors in RCW
50.04.140; temporary staffing services companies and services referral agencies as defined in RCW
50.04.245; third-party payers as defined in RCW
50.04.248; or labor organizations.
(2) "Client employer" means any employer who enters into a professional employer agreement with a professional employer organization.
(3) "Coemployer" means either a professional employer organization or a client employer that has entered into a professional employer agreement.
(4) "Covered employee" means an individual performing services for a client employer that constitutes employment under this title.
(5) "Professional employer services" means services provided by the professional employer organization to the client employer, which include, but are not limited to, human resource functions, risk management, or payroll administration services, in a coemployment relationship.
(6) "Coemployment relationship" means a relationship that is intended to be ongoing rather than temporary or project-specific, where the rights, duties, and obligations of an employer in an employment relationship are allocated between coemployers pursuant to a professional employer agreement and state law. A coemployment relationship exists only if a majority of the employees performing services to a client employer, or to a division or work unit of a client employer, are covered employees. In determining the allocation of rights and obligations in a coemployment relationship:
(a) The professional employer organization has only those employer rights and is subject only to those obligations specifically allocated to it by the professional employer agreement or state law;
(b) The client employer has those rights and obligations allocated to it by the professional employer agreement or state law, as well as any other right or obligation of an employer that is not specifically allocated by the professional employer agreement or state law.
(7) "Professional employer agreement" means a written contract between a client employer and a professional employer organization that provides for: (a) The coemployment of covered employees; and (b) the allocation of employer rights and obligations between the client and the professional employer organization with respect to the covered employees.