Nev. Const. art. 19, § 6
This Article does not permit the proposal of any statute or statutory amendment which makes an appropriation or otherwise requires the expenditure of money, unless such statute or amendment also imposes a sufficient tax, not prohibited by the Constitution, or otherwise constitutionally provides for raising the necessary revenue.
[Added in 1972. Proposed and passed by the 1969 Legislature; agreed to and passed by the 1971 Legislature; and approved and ratified by the people at the 1972 General Election. See: Statutes of Nevada 1969, p. 1720; Statutes of Nevada 1971, p. 2262.]