§ 20.705 Failure to appear.
The ALJ may enter a default under § 20.310 against a respondent threatening to fail, or having failed, to appear at a hearing unless,—
(a) Before the time for the hearing, the respondent shows good cause why neither the respondent nor his or her representative can appear; or,
(b) 30 days or less after an order to show good cause, the respondent shows good cause for his or her failure to appear.