Conferences and Trainings 2020 Virtual Trainings OCDA is offering numerous virtual trainings throughout the remainder of 2020 free of charge to our members. Please login to the members section to view and register for these trainings. OCDA 2021 Spring Conference When: April 19 - 20, 2021 Where: Hilton Columbus Polaris 8700 Lyra Drive Columbus, OH 43240 Cost: Member Rate $250/per person - full registration $175/per person - Monday only $175/per person - Tuesday only Non- Member Rate $500/per person - full registration $300/per person - Monday only $300/per person - Tuesday only -You MUST sign in as a member to receive the member rate.