A sobriety coin is a token given to Alcoholics Anonymous or other twelve-step program members representing the amount of time the member has remained sober. It is traditionally a medallion the size of a poker chip, 34 mm (1.34 in) (standard) or 39 mm (1.5 in) in diameter. In other twelve-step programs it is to mark time abstaining from whatever the recipient has committed to renounce. There is no official AA medallion or chip; they are used in AA culture but not officially conference-approved, and the AA logo has not been granted for use on medallions.[1]