Home > Bulletin Archive > Required 4506T November 10, 2008 Required 4506T Effective with any file received for underwriting on or after 11/17/08, an executed 4506T will be required for underwriting submission. All files received for underwriting prior to 11/17/08 may be subject to a QC Audit and subsequent Prior to Doc conditioning for a signed 4506T. PDF of this Bulletin