Tier qualification is something that AGR does, and not the credit card issuing bank. BOA will just report the TQPs earned as and when they are earned, to AGR. BOA of course has no way of knowing what TQP is earned by Amtrak travel. BOA's TQP accumulation beging with the registration date with BOA most likely, given the way they seem to operate. For AGR the TQP accumulation datet usually runs from the first day of calendar year or the AGR registration date if that is later than the first day of the calendar year.to the last day of a calendar year.