7 Tex. Admin. Code § 9.30
The administrative law judge may take official notice of judicially cognizable facts, and of generally recognized facts within the area of the agency's specialized knowledge. A party that desires the administrative law judge to take official notice of particular facts must make a motion that the administrative law judge do so, stating with specificity the facts, material, records, or documents encompassed in the motion. A party who opposes the motion will have the opportunity to contest the requested action. The administrative law judge may also sua sponte take official notice of facts, material, records, or documents on giving the parties an opportunity to contest the facts, material, records, or documents to be officially noticed.
7 Tex. Admin. Code § 9.30