[Code of Federal Regulations] [Title 47, Volume 1] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR6.16] [Page 647] TITLE 47--TELECOMMUNICATION CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION PART 6--ACCESS TO TELECOMMUNICATIONS SERVICE, TELECOMMUNICATIONS EQUIPMENT AND CUSTOMER PREMISES EQUIPMENT BY PERSONS WITH DISABILITIES--Table of Contents Subpart D--Enforcement Sec. 6.16 Informal or formal complaints. Complaints against manufacturers or providers, as defined under this subpart, for alleged violations of this subpart may be either informal or formal.