Regulation Automated Trading

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Commodity Futures Trading Commission 17 CFR Parts 1, 38, 40, and 170 RIN 3038-AD52 AGENCY: Commodity Futures Trading Commission. ACTION: Supplemental notice of proposed rulemaking. SUMMARY: On December 17, 2015, the Commodity Futures Trading Commission (“CFTC” or “Commission”) published in the Federal Register a notice of proposed rulemaking (“NPRM”) proposing a series of risk controls, transparency measures, and other safeguards to enhance the safety and soundness of automated trading on all designated contract markets (“DCMs”) (collectively, “Regulation Automated Trading” or “Regulation AT”). Through this supplemental notice of proposed rulemaking for Regulation AT (“Supplemental NPRM”), the Commission is proposing to modify certain rules set forth in the NPRM. Any new or amended rules proposed in this Supplemental NPRM reflect only those areas where the Commission believes that additional notice and comment may be appropriate before enacting final rules. Procedurally, this Supplemental NPRM is not a replacement or withdrawal of rules proposed in the NPRM. Unless specifically amended herein, all regulatory text proposed in the NPRM remains under active consideration for adoption as final rules. The Commission welcomes public comment on all aspects of the Supplemental NPRM. DATES: Comments must be received on or before January 24, 2017. ADDRESSES: You may submit comments, identified by RIN 30…