Wash. Rev. Code § 70.158.900
If a court of competent jurisdiction finds that the provisions of chapter 25, Laws of 2003 and chapter 70.157 RCW conflict and cannot be harmonized, then the provisions of chapter 70.157 RCW shall control. If any section, subsection, subdivision, paragraph, sentence, clause, or phrase of chapter 25, Laws of 2003 causes chapter 70.157 RCW no longer to constitute a qualifying or model statute, as those terms are defined in the master settlement agreement, then that portion of chapter 25, Laws of 2003 shall not be valid. If any section, subsection, subdivision, paragraph, sentence, clause, or phrase of chapter 25, Laws of 2003 is for any reason held to be invalid, unlawful, or unconstitutional, the decision shall not affect the validity of the remaining portions of chapter 25, Laws of 2003 or any part thereof.
RCW 70.158.900