The Court's review of constitutional questions is plenary. Williams v. Bd. of County Comm'rs, 2013 MT 243, ¶ 23, 371 Mont. 356, 308 P.3d 88. Legislative enactments are presumed to be constitutional, and the party challenging the provision has the burden of proving beyond a reasonable doubt that it is unconstitutional. Williams, ¶ 23. The severability of an unconstitutional provision from a statute is a matter of statutory interpretation, which we review for correctness. Williams, ¶ 23.