The Comptroller may serve a notice of suspension or order of removal or prohibition pursuant to 12 U.S.C. 1818(g) on an institution-affiliated party. A copy of such notice or order will be served on any depository institution that the subject of the notice or order is affiliated with at the time the notice or order is issued, whereupon the institution-affiliated party involved must immediately cease service to, or participation in the affairs of, that depository institution and, if so determined