When a credit union has completely wound up, all of its known debts and liabilities actually paid or adequately provided for or paid as far as its assets permit, and its known assets distributed, a majority of the committee or the liquidating agent in charge of liquidation shall sign and acknowledge a certificate stating that the credit union has been completely wound up, its known assets distributed, any tax or penalty due under the Bank and Corporation Franchise Tax Law paid, and its other known debts and liabilities actually paid or adequately provided for or paid as far as its assets permit and that the credit union is dissolved.