Texas Insurance Code - INS § 2251.153. Commissioner Action

(a) Not later than the 30th day after the date a rate is filed with the department under this subchapter, the commissioner shall:

(b) Except as provided by Subsection (c), if a rate has not been approved or disapproved by the commissioner before the expiration of the 30-day period described by Subsection (a), the rate is considered approved and the insurer may use the rate unless the rate proposed in the filing represents an increase of 12.5 percent or more from the insurer's previously filed rate.

(c) For good cause, the commissioner may, on the expiration of the 30-day period described by Subsection (a), extend the period for approval or disapproval of a rate for one additional 30-day period.  The commissioner and the insurer may not by agreement extend the 30-day period described by Subsection (a).