The negotiations councils for school boards and for teachers' and administrators' organizations are empowered to delegate in whole or in part the responsibility for negotiation of the collective agreement to any persons they may choose. However, final ratification of any agreement on behalf of a school board shall remain the sole responsibility of the school board, unless the school board has agreed to binding interest arbitration pursuant to subchapter 4 of this chapter. (Added 1969, No. 127, § 2, eff. Sept. 1, 1969; amended 1991, No. 196 (Adj. Sess.), § 3; 2007, No. 82, § 37.)