; or (2) through an alternative trading system or digital asset trading system. . 403. Registration of digital asset trading systems Section 6 of the Securities Exchange Act of 1934 ( 15 U.S.C. 78f ) is amended by adding at the end the following: (m) Digital asset trading system (1) In general It shall be unlawful for any digital asset trading system to make use of the mails or any means or instrumentality of interstate commerce within or subject to the jurisdiction of the United States to effect any transaction in a restricted digital asset, unless such digital asset trading system is registered with the Commission. (2) Application A person desiring to register as a digital asset trading system shall submit to the Commission an application in such form and containing such information as the Commission may require for the purpose of making the determinations required for approval. (3) Exemptions A digital asset trading system that offers or seeks to offer at least one restricted digital asset shall not be required to register under this section (and paragraph (1) shall not apply to such digital asset trading system) if the trading system satisfies any exemption contained on a list of exemptions prepared by the Commission to be as close as practicable to those exemptions set forth in section 240.3b–16(b) of title 17, Code of Federal Regulations, applicable to the definition of an exchange. (4) Additional registrations (A) With the Commission (i) In general A registered digital asset trading system shall be permitted to maintain any other registration with the Commission relating to the other activities of the registered digital asset trading system, including as a— (I) national securities exchange; (II) broker; (III) dealer; (IV) alternative trading system, pursuant to part 242 of title 17, Code of Federal Regulations, as in effect on the date of enactment of this subsection; (V) digital asset broker