Neb. Rev. Stat. §§ 79-575
The secretary of a school district shall draw and sign all orders upon the treasurer for all money to be disbursed by the district and all warrants upon the county treasurer for money raised for district purposes or apportioned to the district by the county treasurer and shall present the same to the president to be countersigned. No warrant, check, or other instrument drawn upon bank depository funds of the district shall be issued until so countersigned. No warrant, check, or other instrument drawn upon bank depository funds of the district shall be countersigned by the president until the amount for which it is drawn is written upon its face. Facsimile signatures of board members may be used, and a person or persons delegated by the board may sign and validate all warrants, checks, and other instruments drawn upon bank depository funds of the district.
Neb. Rev. Stat. §§ 79-575