IMHO do not put your faith in Concorde alone.
For DS' remedial I had physician's office give me a copy of results and I scanned / emailed [and snailmailed hardcopy] to DoDMERB directly.
[Note: we elected to use our family pediatrican for remedial test since Concord provider was 90 mile round trip. Paid copay etc etc out of pocket; this was not a major concern to me but of course realize is to others.]
DS received remedial notice after Thanksgiving so I hustled the exam in before Xmas to avoid unknown but almost certain delays.