Neb. Rev. Stat. § 28-1237: Neb. Rev. Stat. § 28-1237

The provisions of sections 28-1213 to 28-1239 and the rules adopted pursuant thereto shall be the minimum standard required and shall supersede any special law or local ordinance inconsistent therewith, and no local ordinance inconsistent therewith shall be adopted, but nothing herein contained shall prevent the enactment by local law or ordinance of additional requirements and restrictions.