Code of Federal Regulations Title 31. Money and Finance–Treasury § 31.8.55 Contents of complaint

(a) Charges. A complaint will give a plain and concise description of the allegations which constitute the basis for the proceeding. A complaint will be deemed sufficient if it fairly informs the respondent of the charges to that he or she is able to prepare a defense.

(b) Demand for answer. The complaint will give notification of the place and time prescribed for the filing of an answer by the respondent;  that time will be not less than 15 days from the date of service of the complaint. Notice will be given that a decision by default may be rendered against the respondent if the complaint is not answered as required.