Texas Family Code - FAM § 263.304. Initial Permanency Hearing;  Time

(a) Not later than the 180th day after the date the court renders a temporary order appointing the department as temporary managing conservator of a child, the court shall hold a permanency hearing to review the status of, and permanency plan for, the child to ensure that a final order consistent with that permanency plan is rendered before the date for dismissal of the suit under this chapter.

(b) The court shall set a final hearing under this chapter on a date that allows the court to render a final order before the date for dismissal of the suit under this chapter.  Any party to the suit or an attorney ad litem for the child may seek a writ of mandamus to compel the court to comply with the duties imposed by this subsection.