If, within 30 days of receipt of a final agency order issued
under this part, the respondent does not submit in writing his/her acceptance
of the terms of an order directing compliance, or, where appropriate, pay a
civil penalty, or file an appeal under
§386.67, the case may be referred to the
Attorney General with a request that an action be brought in the appropriate
United States District Court to enforce the terms of a compliance order or
collect the civil penalty.