VA Directive 6504, Restrictions on Transmissions, Transportation and Use of and access to VA Data Outside VA Facilities: OIT: 05/10/2007: VHA Directive 2006-055, Outpatient Scheduling Process and Procedures Training: VHA: 04/16/2007: Realignment of Operation and Maintenance employees into the VA IT Federated Management System: VA/OIT: 02/20/2007.