Neb. Rev. Stat. § 17-959: Neb. Rev. Stat. § 17-959

The city council or village board of trustees shall levy annually a sufficient tax to maintain, operate, and extend any cold storage or refrigeration plant as provided under section 17-956 and to provide for the payment of the interest on, and principal of, any bonds that may have been issued as provided in section 17-957 .