If any clause or provision of this chapter or its application to any person or organization is held unconstitutional, such invalidity does not affect other clauses, provisions, or applications of this chapter that can be given effect without the invalid clause or provision and shall not affect or nullify the remainder of the Act or any other clause or provision, but the effect shall be confined to the clause or provision held to be invalid or unconstitutional and to this end the Act is declared to be severable.
Tex. Civ. Prac. and Rem. Code § 84.008