CFR > Title 31 - Money and Finance: Treasury > SUBTITLE B—Regulations Relating to Money and Finance > CHAPTER X—FINANCIAL CRIMES ENFORCEMENT NETWORK, DEPARTMENT OF THE TREASURY (parts 1000 to 1029) > PART 1023—RULES FOR BROKERS OR DEALERS IN SECURITIES > SUBPART F—Special Standards of Diligence; Prohibitions; and Special Measures for Brokers or Dealers in Securities (§1023.600 to §1023.670) > 1023.630—Prohibition on correspondent accounts for foreign shell banks; records concerning owners of foreign banks and agents for service of legal process.