Treasury Official Sees Major Impact from Single Security. A key Treasury Department official suggested that issuers of non-agency MBS may someday participate in the common securitization platform being developed by Fannie Mae and Freddie Mac. Craig Phillips, counselor to the Treasury, said the industry has made a lot of progress toward the launch of the single security that is scheduled for June 2019. “Industry preparedness is about an eight or nine on a scale of 10,” he said during remarks at this week's secondary market conference sponsored by the Mortgage Bankers Association in New York. Phillips characterized the...