Tri Delta is excited to see you in Southern California this spring at the Sheraton Park Hotel at the Anaheim Resort. Tri Delta members can log in with their My Tri Delta username and password below. Not a member? Create an account first, then use your new username and password to log in. Please complete all registration steps. You will receive a confirmation email when registration is complete. Questions can be sent to


Refund requests must be sent to and will be processed within 10 business days. Refunds will be issued in the same format as payment was made. Tri Delta will offer a full refund on cancellations received through April 6, 2019. No cancellations will be processed after April 6, 2019.