Wash. Admin. Code § 246-105-030
In accordance with the conditions of this chapter, a child is required to be vaccinated against, or show proof of acquired immunity for, the following vaccine-preventable diseases before attending school or a child care center:
[Statutory Authority: RCW 28A.210.140 and 28A.210.090. WSR 14-06-037, § 246-105-030, filed 2/25/14, effective 3/28/14. Statutory Authority: RCW 28A.210.140. WSR 09-02-003, § 246-105-030, filed 12/26/08, effective 1/26/09.]