(a) Except as provided by Subsections (b) and (c), notice of meetings of the board shall be given as set forth in the Open Meetings Act, Chapter 551, Government Code. Neither failure to provide notice of a regular meeting nor an insubstantial defect in notice of any meeting shall affect the validity of any action taken at the meeting.
(b) At least 10 days before a hearing under § 36.108(d-2) or a meeting at which a district will adopt a desired future condition under § 36.108(d-4), the board must post notice that includes:
(1) the proposed desired future conditions and a list of any other agenda items;
(2) the date, time, and location of the meeting or hearing;
(3) the name, telephone number, and address of the person to whom questions or requests for additional information may be submitted;
(4) the names of the other districts in the district’s management area; and
(5) information on how the public may submit comments.

(c) Except as provided by Subsection (b), notice of a hearing described by Subsection (b) must be provided in the manner prescribed for a rulemaking hearing under § 36.101(d).