The DR quizzes accessible to you are those from journals you have purchased individually or journals mailed to you as part of your current membership period. The join date and expiration date define an ASRT membership period. If your membership lapses and you later rejoin the ASRT, you will be assigned a new join date and you will have access to DR quizzes from that new join date forward.
Access to answer sheets may be purchased through the ASRT Store, or Member Services can assist you with a purchase by phone.