[Code of Federal Regulations] [Title 17, Volume 1] [Revised as of April 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 17CFR171.3] [Page 598] TITLE 17--COMMODITY AND SECURITIES EXCHANGES CHAPTER I--COMMODITY FUTURES TRADING COMMISSION PART 171_RULES RELATING TO REVIEW OF NATIONAL FUTURES ASSOCIATION DECISIONS IN DISCIPLINARY, MEMBERSHIP DENIAL, REGISTRATION AND MEMBER RESPONSIBILITY ACTIONS--Table of Contents Subpart A_General Provisions Sec. 171.3 Business address; hours. The principal office of the Commission is located at Three Lafayette Centre, 1155 21st Street, NW., Washington, DC 20581. It is open each day, except Saturdays, Sundays, and legal public holidays, from 8:15 a.m. until 4:45 p.m., eastern standard time or eastern daylight savings time, whichever is currently in effect in Washington, DC. [55 FR 41068, Oct. 9, 1990, as amended at 60 FR 49336, Sept. 25, 1995]