To create an account on the SIOP website, begin by entering your email address. The system will check to see if an account already exists. If one is found, you'll receive an email with a confirmation link to make sure the email address really belongs to you. (If you no longer have access to an old email account, please send a message to with these details.) If the system does not find an existing account, you'll be instructed to create a new account.

Alternatively, to activate a former account or if you know someone else has created an account for you (for example during a conference submission), click the link below to activate that account by entering your account ID number. Please contact SIOP directly at for help with your account.