49 CFR 1114.6: Official notice of corroborative material.

The Board or a hearing officer may take notice of official records, records in other Board proceedings, or other materials which are otherwise subject to specific rules governing admissibility regardless of compliance with the full technical provisions of such rules, where the admissibility of the evidence is for purposes of corroboration of testimony presented or to evaluate the credibility of testimony or allegations made in proceedings where the public interest is not otherwise adequately represented by counsel capable of fully complying with such rules.