Has the Treasury dropped any hints as to when paper bond conversion and marketable securities will be introduced into Treasury Direct? Tom's response I haven't heard any specific target dates for these enhancements. Just to make sure you know - you can buy marketable Treasury securities online right now. That system is also called TreasuryDirect, but it's a different system from the one for Savings Bonds. The Treasury says its plan is to combine the two systems, but it hasn't said when.