Declares an intent to clarify the process for the determination of parentage in this state in response to In re the Parentage of L.B.; Sue Ellen ("Mian") Carvin v. Page Britain;Docket Number 75626-1 (2005). In that case, the court held that Washington's common law recognizes the status of de facto parents and grants them standing to petition for a determination of the rights and responsibilities that accompany legal parentage in Washington state. The legislature intends to preempt the common law and clarify that chapter 26.26 RCW governs every determination of parentage in this state without exception.