I can't give you the exact version date (because I don't know the technical name), but I can tell you that the one released was not the SOP (I can tell you that because I read through a lot of what was there and there were plenty of differences) that was current at the time of release. The SOP for many of the .gov branches (not just TSA) change their SOPs on almost a weekly basis, so any SOP/parameters given during the bid process would most likely be out of date by the end of the bid process. Sometimes those changes are a wording of a certain section, sometimes it is a complete process change. The problem with contracts for private contractors at this point (and it is a technical problem, not a practical problem) is the fact that the security processes evolve and change all the time. If we were to have a major incident, I am certain there would be changes based on what type of incident and how it has/had an effect on the screening process. Even with minor incidents, there are tweaks here and there that come out all the time, and that makes giving a company that gives them the exact expectations for running a checkpoint almost impossible.