Only a process agent, on behalf of the applicant (carrier), can file Form BOC-3 (Designation of Process Agents) with the FMCSA.  A broker or freight forwarder applicant, without CMVs, can file Form BOC-3 on their own behalf. Only one completed form may be on file. It must include all states for which agency designations are required. One copy must be retained by the carrier or broker at its principal place of business.