15 CFR §904.5

1. (a)A party may appear in person or by or with counsel or other representative.
2. (b)Whenever an attorney or other representative contacts the Agency on behalf of another person with regard to any matter that has resulted in, or may result in, a written warning, a NOVA, NOPS, NIDP, or a forfeiture proceeding, that attorney or other representative shall file a Notice of Appearance with the Agency. Such notice shall indicate the name of the person on whose behalf the appearance is made.
3. (c)Each attorney or other representative who represents a party in any hearing shall file a written Notice of Appearance with the Judge. Such notice shall indicate the name of the case, the docket number, and the party on whose behalf the appearance is made.