On March 8, the SEC released a draft Form PF XML Filing Guide to assist investment advisers in filing Form PF through the XML submission process. The Private Fund Reporting Depository (PRFD) system through which advisers will be able to submit XML versions of Form PF, as well as online versions, is scheduled to “go-live” by July 2012. Advisers may register to participate in the testing phase of the PRFD system beginning on March 21, 2012. Form PF XML Filing Guide. PRFD User Testing.