On December 19, Fed, FDIC and OCC issued Frequently Asked Questions to clarify rules applicable to investments in covered funds and whether collateralized debt obligations backed by trust preferred securities (TruPS CDOs) could be determined to be covered funds under the Volcker Rule. The FAQs clarify that banking entities that have holdings in TruPS CDOs may use the conformance period to determine if they can be brought into conformance by July 21, 2015. Release. FAQ.