[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: 17CFR12.19] [Page 277] TITLE 17--COMMODITY AND SECURITIES EXCHANGES CHAPTER I--COMMODITY FUTURES TRADING COMMISSION PART 12_RULES RELATING TO REPARATIONS--Table of Contents Subpart A_General Information and Preliminary Consideration of Pleadings Sec. 12.19 Counterclaim. A registrant may, at the time of filing an answer to a complaint, set forth as a counterclaim: (a) Facts alleging a violation and a request for a reparation award that would be a proper subject for a complaint under Sec. 12.13 of these rules; or (b) Any claim which at the time the complaint is served the registrant has against the complainant if it arises out of the transaction or occurrence or series of transactions or occurrences set forth in the complaint.