17 C.F.R. § 240.15Bc4-1
A person associated, seeking to become associated, or, at the time of the alleged misconduct, associated or seeking to become associated with a municipal advisor, shall be subject to a Commission order that censures or places limitations on the activities or functions of such person, or suspends for a period not exceeding twelve months or bars such person from being associated with a broker, dealer, investment adviser, municipal securities dealer, municipal advisor, transfer agent, or nationally recognized statistical rating organization, if the Commission finds, on the record after notice and opportunity for hearing, that such censure, placing of limitations, suspension, or bar is in the public interest and that such person has committed any act, or is subject to an order or finding, enumerated in subparagraph (A), (D), (E), (H), or (G) of paragraph (4) of section 15(b) of the Act (15 U.S.C. 78 o(b)(4)(A), 78o(b)(4)(D), 78o(b)(4)(E), 78o(b)(4)(H), 78o(b)(4)(G)), has been convicted of any offense specified in subparagraph (B) of such paragraph (4) (15 U.S.C. 78 o(b)(4)(B)) within 10 years of the commencement of the proceedings under section 15B(c)(4) (15 U.S.C. 78 o-4(c)(4)), or is enjoined from any action, conduct, or practice specified in subparagraph (C) of such paragraph (4) (15 U.S.C. 78 o(b)(4)(C)). It shall be unlawful for any person as to whom an order entered pursuant to section 15B(c)(4) of the Act (15 U.S.C. 78 o-4(c)(4)) or section 15B(c)(5) of the Act (15 U.S.C. 78 o-4(c)(5)) suspending or barring him from being associated with a municipal advisor is in effect willfully to become, or to be, associated with a municipal advisor without the consent of the Commission, and it shall be unlawful for any municipal advisor to permit such a person to become, or remain, a person associated with it without the consent of the Commission, if such municipal advisor knew, or, in the exercise of reasonable care should have known, of such order.
17 C.F.R. §240.15Bc4-1