(b) Claims for salaries or wages of officers or employees need not be signed by the officer or employee if a payroll claim is certified by the administrative head of a department or group of officers or employees or an authorized representative that the salaries or wages stated therein were contracted or incurred for the municipality under authority of law, that the amounts claimed are correct, due and unpaid and that the amounts are due as salaries and wages for services performed by the person named.
Nothing in this subsection shall be construed as prohibiting the payment of employment incentive or retention bonuses authorized by K.S.A. 72-2244, and amendments thereto.