I don't know the reliability of this source, but here is a link to an interesting web site (courtesy of The War in Context: http://www.calpundit.com/archives/003220.html Here is an excerpt from the story: "So what is ARF? I asked Bob Rogers, a retired Air National Guard pilot who's been following this for some time, and what follows is his interpretation of what happened. ARF is the reserves, and among other things it's where members of the guard are sent for disciplinary reasons. As we all know, Bush failed to show up for his annual physical in July 1972, he was suspended in August, and the suspension was recorded on September 29. He was apparently transferred to ARF at that time and began accumulating ARF points in October. ARF is a "paper unit" based in Denver that requires no drills and no attendance. For active guard members it is disciplinary because ARF members can theoretically be called up for active duty in the regular military, although this obviously never happened to George Bush. To make a long story short, Bush apparently blew off drills beginning in May 1972, failed to show up for his physical, and was then grounded and transferred to ARF as a disciplinary measure. He didn't return to his original Texas Guard unit and cram in 36 days of active duty in 1973 as Time magazine and others continue to assert based on a mistaken interpretation of Bush's 1973-74 ARF record but rather accumulated only ARF points during that period. In fact, it's unclear even what the points on the ARF record are for, but what is clear is that Bush's official records from Texas show no actual duty after May 1972, as his Form 712 Master Personnel Record from the Texas Air National Guard clearly indicates: Bush's record shows three years of service, followed by a fourth year in which he accumulated only a dismal 22 days of active service, followed by no service at all in his fifth and sixth years. This is because ARF duty isn't counted as official duty by the Texas guard."