Official notice may be taken of all facts judicially cognizable. In addition, official notice may be taken of generally recognizable facts within the specialized knowledge of TRS. All parties shall be notified either before or during the hearing, or by reference in preliminary reports, drafts of orders, or otherwise, of any material officially noticed, including any staff memoranda or data. All parties will be afforded an opportunity to contest the material so noticed.
34 Tex. Admin. Code § 43.35