[Code of Federal Regulations] [Title 19, Volume 1] [Revised as of April 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 19CFR111.40] [Page 520] TITLE 19--CUSTOMS DUTIES CHAPTER I--BUREAU OF CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY PART 111_CUSTOMS BROKERS--Table of Contents Subpart C_Duties and Responsibilities of Customs Brokers Sec. 111.40 Protests. A broker must not act on behalf of any person, or attempt to represent any person, regarding any protest unless he is authorized to do so in accordance with part 174 of this chapter.