17 C.F.R. § 240.15Fb3-3 – Cancellation and revocation of registration.

(a) Cancellation. If the Commission finds that any person registered pursuant to § 240.15Fb2-1 is no longer in existence or has ceased to do business as a security-based swap dealer or major security-based swap participant, the Commission shall by order cancel the registration of such person.
(b) Revocation. The Commission, by order, shall censure, place limitations on the activities, functions, or operations of, or revoke the registration of any security-based swap dealer or major security-based swap participant that has registered with the Commission if it makes a finding as specified in Section 15F(l)(2) of the Securities Exchange Act of 1934 (15 U.S.C. 78o-10(l)(2)).