Wash. Rev. Code § 9A.42.100
A person is guilty of the crime of endangerment with a controlled substance if the person knowingly or intentionally permits a dependent child or dependent adult to be exposed to, ingest, inhale, or have contact with methamphetamine or ephedrine, pseudoephedrine, or anhydrous ammonia, including their salts, isomers, and salts of isomers, that are being used in the manufacture of methamphetamine, including its salts, isomers, and salts of isomers. Endangerment with a controlled substance is a class B felony.
RCW 9A.42.100
Effective date-2002 c 229: "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect immediately [March 28, 2002]." [ 2002 c 229 s 4.]