(a) Within twenty (20) days from the service of the complaint the
respondent shall file an answer thereto with the Chief Administrative
Law Judge and shall serve a copy on all parties. The answer shall be
signed by the respondent or his attorney or other agent or
representative.
(b) The answer (1) shall contain a statement of the facts which
constitute the grounds of defense, and shall specifically admit,
explain, or deny each of the allegations of the complaint unless the
respondent is without knowledge, in which case the answer shall so
state; or (2) shall state that the respondent admits all of the
allegations in the complaint. Failure to file an answer to or plead
specifically to any allegation in the complaint shall constitute an
admission of such allegation.
