; or (II) any person other than the customers of the registered crypto asset exchange. (E) Customer right to opt out (i) In general A customer shall have the right to waive any requirement under subparagraph (B) by affirmatively electing, in writing to the registered crypto asset exchange, to waive the requirement. (ii) Limitations The Commission may, by rule, establish notice and disclosure requirements, segregation requirements, investment limitations, and other rules relating to the waiving of any requirement under this paragraph that is reasonably necessary to protect customers, including eligible contract participants, non-eligible contract participants, or any other class of customers. (5) Monitoring of trading and trade processing (A) In general A registered crypto asset exchange shall provide a competitive, open, and efficient market and mechanism for executing transactions that protects the price discovery process of trading on the registered crypto asset exchange. (B) Protection of markets and market participants A registered crypto asset exchange shall establish and enforce compliance with rules— (i) to protect markets and market participants from abusive practices committed by any party, including abusive practices committed by a party acting as an agent for a participant; and (ii) to promote fair and equitable trading on the registered crypto asset exchange. (C) Procedures and monitoring A registered crypto asset exchange shall— (i) establish and enforce compliance with rules or terms and conditions defining, or specifications detailing— (I) trading procedures to be used in entering and executing orders traded on or through the facilities of the registered crypto asset exchange; and (II) procedures for trade processing of crypto assets on or through the facilities of the registered crypto asset exchange