Wash. Rev. Code § 43.20B.450
The liabilities created by RCW 43.20B.410 through 43.20B.455 shall apply to the care, support and treatment occurring after July 1, 1967.
[ 1987 c 75 s 29; 1967 c 141 s 11. Formerly RCW 72.33.695.]
Effective date—1967 c 141: See note following RCW 43.20B.410.