Special offer for 2020! Purchase all four 2020 OASIS Update Teleconferences and you'll receive a FREE 2020 INSTANT OASIS Answers book for OASIS-D1. Assure that you and/or your entire in-house staff are up to date on the latest OASIS data collection rules. Offer expires 1/22/2020. Free INSTANT OASIS Answers book is estimated to ship in December 2019.