The policy adopted under Section 26A.001 must:
(1) provide at least:
(A) for a grievance filed by a parent of or person standing in parental relation to a student enrolled in the school district:
(i) 60 days to file a grievance from the date on which the parent or person knew or had reason to know of the facts giving rise to the grievance; or
(ii) if the parent or person engaged in informal attempts to resolve the grievance, the later of 90 days to file a grievance from the date described by Subparagraph (i) or 30 days to file a grievance from the date on which the district provided information to the parent or person regarding how to file the grievance; and
(B) 20 days to file an appeal after the date on which a decision on the grievance was made;
(2) for a hearing that is not before the board of trustees of the school district, require:
(A) the district to hold a hearing not later than the 10th day after the date on which the grievance or appeal was filed; and
(B) a written decision to be made not later than the 20th day after the date on which the hearing was held that includes:
(i) any relief or redress to be provided; and
(ii) information regarding filing an appeal, including the timeline to appeal under this section and Section 7.057, if applicable; and
(3) for a hearing before the board of trustees of the school district, require the board of trustees to:
(A) hold a meeting to discuss the grievance not later than the 60th day after the date on which the previous decision on the grievance was made; and
(B) make a decision on the grievance not later than the 30th day after the date on which the meeting is held under Paragraph (A).