Wyo. Stat. § 21-2-909: Legal proceedings.

(a) No liability shall arise on the part of the state superintendent of public instruction or the state or any public school or school district based on the award of or use of an ESA pursuant to this act.

(b) In any legal proceeding challenging the application of this act or rule adopted under this act to an education service provider, the state bears the burden of proof to establish that the law is necessary and does not impose any undue burden on the education service provider.

(c) If any part of this act is challenged in a state court as violating either the state or federal constitutions, parents of eligible students and parents of ESA students shall be permitted to intervene in any lawsuit for the purposes of defending the ESA program's constitutionality.

(d) If any provision of this act or its application to an individual or circumstance is held invalid, the invalidity does not affect other provisions or applications of this act which can be given effect without the invalid provision or application, and to this end the provisions of this act are severable.