13 CFR §134.1310

1. (a)Who may respond. Although not required, any person served with an appeal petition may file and serve a response supporting or opposing the appeal if he or she wishes to do so. The response should present arguments related to the issues presented on appeal.
2. (b)Time limits. If a person decides to file a response, the response must be filed within fifteen (15) business days after service of the appeal petition.
3. (c)Service. The respondent must serve its response upon the appellant and upon each of the persons identified in the certificate of service attached to the appeal petition pursuant to § 134.1305.
4. (d)Reply to a response. No reply to a response will be permitted unless the Judge directs otherwise.