Program tiers are based on your qualifying purchases and actions in a rolling 365-day period. For the 365-day period after which you join the Program and/or enter a new Tier, you will earn Points from your qualifying purchases and actions based on the rate for that Tier. Your Tier level for the subsequent annual period will be based on your spending, starting the first day after your enrollment and/or entry into a new Tier and ending on or around Day 365. On Day 366, you may be placed in a different Tier depending on your spend in the immediately preceding 365-day period, and your spend and actions register will be set at zero.