Insurance Code §1501.215

(a) Annually, each small employer health benefit plan issuer that offers a small employer health benefit plan shall file with the commissioner an actuarial certification stating that the issuer's underwriting and rating methods: (1) comply with accepted actuarial practices; (2) are uniformly applied to each small employer health benefit plan covering a small employer; and (3) comply with this subchapter. (b) Each small employer health benefit plan issuer shall maintain at its principal place of business a complete and detailed description of its rating practices and renewal underwriting practices, including information and documentation that demonstrate that its rating methods and practices are based on commonly accepted actuarial assumptions and are in accordance with sound actuarial principles. (c) A small employer health benefit plan issuer shall make the information and documentation described in Subsection (b) available to the commissioner on request. Unless the information or documentation relates to a violation of this chapter, the information or documentation is considered proprietary and trade secret information and is not subject to disclosure by the commissioner to a person outside the department except as agreed to by the issuer or as ordered by a court.