[Code of Federal Regulations] [Title 47, Volume 3] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR61.16] [Page 191] TITLE 47--TELECOMMUNICATION CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) PART 61_TARIFFS--Table of Contents Subpart B_Rules for Electronic Filing Sec. 61.16 Base documents. (a) The Base Document is a complete tariff which incorporates all effective revisions, as of the last day of the preceding month. The Base Document should be submitted with a cover letter as specified in Sec. 61.15(f) of this part and identified as the Monthly Updated Base Document. (b) Initially, carriers that currently have tariffs on file with the commission must file a Base Document within five days of the initiation of mandatory electronic filing. (c) Subsequently, if there have been revisions that became effective up to and including the last day of the preceding month, a new Base Document must be submitted within the first five business days of the current month that will incorporate those revisions.