Scope of this Practice Note This Practice Note outlines the Financial Conduct Authority’s (FCA) custody rules found in the Client Assets sourcebook (CASS), which forms part of the FCA Handbook, with which regulated firms must comply when they are safeguarding and administering investments. The rules apply to custody assets, which include safe custody investments (which are designated investments which a firm receives or holds on behalf of a client), and any other assets that are held in the same portfolio as safe custody investments for the same client. What do the FCA custody rules cover? The custody rules contained in chapter 6 of the Financial Conduct Authority's (FCA) Client Assets sourcebook (CASS) provide details on what a firm must do when it carries on the regulated activity of safeguarding and administering investments. See Practice Note: Safeguarding and administering investments for more information on this activity. The rules apply to custody assets, which include safe custody investments (which are designated investments which a firm receives or holds on behalf of a client), and any other assets that are