The House Appropriations Subcommittee in Military Construction and Veterans Affairs issued FY14 Bill on May 14, 2014. The bill includes language on a single, integrated electronic health record system as shown in their summary below.
DOD-VA Electronic Health Record – The bill contains $344 million in funding to jumpstart a single, integrated Department of Defense and Veterans Affairs electronic health record system. The legislation requires that a unified system be certified by the Secretaries of DOD and the VA, and confirmed by the Government Accountability Office (GAO), before the majority of funding for the program is released.
The full text can be found at http://appropriations.house.gov/UploadedFiles/BILLS-113HR-SC-AP-FY14-MilConVA.pdf. Before it becomes a congressional mandate, it will need a similar language in the Senate defense appropriations bill, support of the conference committee and presidential signature of the final bill.