Official notice may be taken of any material fact, not appearing in evidence in the record, which is among the traditional matters of judicial notice. Provided, however, that the parties shall be given adequate notice, at the hearing or by reference in the Administrative Law Judge's decision, of the matters so noticed, and shall be given adequate opportunity to show the contrary.

[54 FR 48596, Nov. 24, 1989. Redesignated by Order No. 1534-91, 56 FR 50053, Oct. 3, 1991]