CFR›Title 17›Chapter II›Part 255›Subpart A ContainsSections 255.1–255.2CorpusDaily eCFRDisplayed edition2026-05-28Last updated2026-05-28 Subpart A—Authority and Definitions Sections 255.1 § 255.1 Authority, purpose, scope, and relationship to other authorities. 255.2 § 255.2 Definitions. Next Appendix A to Part 255 Appendix A to Part 255—Reporting and Recordkeeping Requirements for Covered Trading Activities