RCW 70.54.510: Communicable disease control policy.

(1) It is the policy of the state that public health responses to address communicable diseases be guided by the best available science on the safety and efficacy of evidence-based measures to control the spread of such diseases, including immunizations and vaccines.

(2) Consistent with the policy in subsection (1) of this section, the state and local health officials must, within available resources, implement and promote evidence-based, appropriate measures to control the spread of communicable diseases, including immunizations and vaccines. The state and its political subdivisions may not enact statutes, ordinances, rules, or policies that prohibit the implementation and promotion of such measures. Any such statute, ordinance, rule, or policy in place on April 21, 2025, is hereby declared null and void.