16 Tex. Admin. Code § 1.101
The rules of evidence as applied in nonjury civil cases in the district courts of Texas shall be followed in contested cases. Irrelevant, immaterial, or unduly repetitious evidence may be excluded. When necessary to ascertain facts not reasonably susceptible of proof under those rules, evidence not admissible under them may be admitted (except where precluded by statute) if it is of a type commonly relied upon by reasonably prudent persons in the conduct of their affairs. The rules of privilege recognized by law shall apply in commission proceedings. Objections to evidentiary offers may be made and shall be noted in the record. If no objections are made, the evidence may be admitted.
Source Note:The provisions of this §1.101 adopted to be effective June 1, 1991, 16 TexReg 2289.