Wash. Rev. Code § 48.12.400
The purpose of this subchapter is to protect the interest of insureds, claimants, ceding insurers, assuming insurers, and the public generally. The legislature intends to ensure adequate regulation of insurers and reinsurers and adequate protection for those to whom they owe obligations. Therefore, the legislature provides a mandate that upon the insolvency of a non-United States insurer or reinsurer that provides security to fund its United States obligations in accordance with this subchapter, the assets representing the security must be maintained in the United States and claims must be filed with and valued by the state insurance commissioner with regulatory oversight, and the assets distributed, in accordance with the insurance laws of the state in which the trust is domiciled that are applicable to the liquidation of domestic United States insurance companies. The legislature declares that the matters contained in this subchapter are fundamental to the business of insurance in accordance with 15 U.S.C. Secs. 1011-1012.
RCW 48.12.400