Wash. Rev. Code § 11.104B.280
(1) The definitions in this subsection apply throughout this section unless the context clearly requires otherwise.
(b) "Marital trust" means a trust:
(ii) That qualifies for a marital deduction with respect to the settlor's estate under 26 U.S.C. Sec. 2056 of the federal internal revenue code of 1986, as amended, as of January 1, 2022, because:
(2) For each accounting period, the following rules apply to a separate fund:
(4) The fiduciary of a marital trust shall:
(c) Distribute to the current income beneficiary as income:
[ 2021 c 140 s 2409.]