No public body shall exercise any of the powers conferred by the Public Securities Short-Term Interest Rate Act or issue any bonds pursuant hereto until after its local governing body shall have adopted a resolution finding that:
A. the issuance of bonds under that act will result in a savings in interest cost to the public body; and
B. the issuance by the public body of bonds under that act is necessary in the interest of the public health, safety, morals or welfare of the residents of the public body.