Modifies the Washington clean air act to: (1) Provide a definition for "produce facility" which is a state-licensed marijuana facility;

(2) Include in the definition of "agricultural activity," the growing, raising, or production of flowers, fruit trees, vegetables, marijuana, usable marijuana, marijuana-infused products, and honey; and

(3) Exempt from clean air act provisions, odors or fugitive dust caused by agricultural activity consistent with good agricultural practices on produce facilities, unless they have a substantial adverse effect on public health.