Wash. Rev. Code § 67.17.130
This chapter shall be liberally construed so as to effectuate its purposes. The provisions of this chapter are severable, and, if any phrase, clause, sentence, or provision of the compact is declared to be contrary to the Constitution of the United States or of any party state, or the applicability of the live horse racing compact to any government, agency, person, or circumstance is held invalid, the validity of the remainder of the compact and the applicability thereof to any government, agency, person, or circumstance shall not be affected thereby. If all or some portion of the live horse racing compact is held to be contrary to the constitution of any party state, the compact shall remain in full force and effect as to the remaining party states and in full force and effect as to the state affected as to all severable matters.
RCW 67.17.130