Yes. You, your faculty sponsor (if applicable), and anybody listed as key study personnel in section 3.0 of the application must complete CITI training. You will be prompted to upload Alternate CITI certificates for the non-OU researchers during the study document upload section of the application. You may still submit your study application documents before training is complete, but you must complete the training before the study can be approved. Click here for a link to the website: https://www.citiprogram.org/.
Note: Your non-OU researchers may register for the OU CITI course if they do not have an equivalent training available. Here are the instructions to Register for a New CITI Account.