Official Candidate letters have been going out of Admissions since May. Generally speaking they are triggered by SAT/ACT scores deemed to be at least minimally acceptable, or some other factor that attracts the attention of the reviewer; eg, athletic, community service, etc, accomplishments. As is normal there is no pre-set number that will be issued, and the number varies from year to year and among the various areas. From casual observation, I would estimate that about 40 per cent of the total prospects on my BGO roster will become official candidates. Bear in mind that this is a starting point, not an end point.