[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: 17CFR41.2] [Page 459] TITLE 17--COMMODITY AND SECURITIES EXCHANGES CHAPTER I--COMMODITY FUTURES TRADING COMMISSION PART 41_SECURITY FUTURES PRODUCTS--Table of Contents Subpart A_General Provisions Sec. 41.2 Required records. A designated contract market or registered derivatives transaction execution facility that trades a security index or security futures product shall maintain in accordance with the requirements of Sec. 1.31 books and records of all activities related to the trading of such products, including: Records related to any determination under subpart B of this part whether or not a futures contract on a security index is a narrow-based security index or a broad-based security index.