The township board of highway commissioners shall hold regular meetings on the last Monday of March, June, September and December, and special meetings, as the occasion may require, at the call of the chairman or any two of the commissioners: Provided, That no bills shall be allowed or any other official business transacted except at a regular meeting or a special meeting at which all of the commissioners have had notice and at which at least two are present.
K.S.A. 68-524