[Code of Federal Regulations] [Title 18, Volume 1] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 18CFR154.207] [Page 446] TITLE 18--CONSERVATION OF POWER AND WATER RESOURCES CHAPTER I--FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY PART 154--RATE SCHEDULES AND TARIFFS--Table of Contents Subpart C--Procedures for Changing Tariffs Sec. 154.207 Notice requirements. All proposed changes in tariffs, contracts, or any parts thereof must be filed with the Commission and posted not less than 30 days nor more than 60 days prior to the proposed effective date thereof, unless a waiver of the time periods is granted by the Commission.