Last year, the Department of Defense (DoD) issued a surprising directive stating that VRF systems would no longer be permitted in U.S. Air Force facilities, and while not forbidden in Army facilities, they would be strongly discouraged. However, the Navy does not plan to restrict VRF systems, as long as they comply with ASHRAE Standard 15, Safety Standard for Refrigeration Systems.
A subsequent U.S. Army Corps of Engineers Bulletin offered three reasons for the new directive: