eCFR :: 17 CFR Part 242 Regulations M, Sho, ATS, AC, NMS, SE, and SBSR, and Customer Margin Requirements for Security Futures
No national market system plan, or any amendment thereto, shall become effective unless approved by the Commission or otherwise permitted in accordance with paragraph (b)(3) of this section. (iii) The election of a national securities exchange or member of a national securities association for any NMS security pursuant to this paragraph (a)(5) shall cease to […]