(1) This part 5, without reference to other statutes of the state, shall constitute full authority for the exercise of powers granted in this part 5, including but not limited to the authorization and issuance of securities under this part 5. No other act or law with regard to the authorization or issuance of securities that provides for an election requires an approval, or in any way impedes or restricts the carrying out of the acts in this part 5 authorized to be done, shall be construed as applying to any proceedings taken under this part 5 or acts done pursuant hereto, except for laws to which reference is made in this part 5 specifically or by necessary implication. The provisions of no other law, either general or local, except as provided in this part 5, shall apply to doing of the things in this part 5 authorized to be done, and no board, agency, bureau, commission, or official, other than the board of directors of a metropolitan sewage disposal district or the governing body of a municipality, has any authority or jurisdiction over the doing of any of the acts in this part 5 authorized to be done.

(2) No notice, consent, or approval by any public body or officer thereof shall be required as a prerequisite to the sale or issuance of any securities or the making of any contract or the exercise of any other power under this part 5, except as provided in this part 5. The powers conferred by this part 5 shall be in addition and supplemental to and not in substitution for, and the limitations imposed by this part 5 shall not affect the powers conferred by, any other law.

(3) Nothing in this part 5 shall repeal or affect any other law or part thereof, except to the extent that this part 5 is inconsistent with any other law, it being intended that this part 5 shall provide a separate method of accomplishing its objectives, and not an exclusive one; and this part 5 shall not be construed as repealing, amending, or changing any such other law except to the extent of such inconsistency.