Sec. 3. (a) The board of a district that determines to establish a fund shall state this determination in the district plan or in any part or amendment to the plan. Notice to this effect shall be made a part of all notices concerning approval of the district plan or a part of or amendment to the plan, including implementation of the plan. The plan must specify the:
(1) works of improvement;
(2) additions to the works of improvement; or
(3) repair of the works of improvement;
that are to be financed by the fund.
(b) When:
(1) the district plan;
(2) part of the district plan; or
(3) an amendment to the district plan;
is approved by the court having jurisdiction of the district, the fund is established.