Stuart,
It is sub 2:45 (men) for a championship start - and this does mean sub 2:45, not 2:45:xx. I know, I got 2:45:13 in this year's FLM and tried to beg a championship place on the basis of it. The response was no. Didn't mattter in the end, because I went under 2:45 in Amsterdam in October to get my qualifying time.