CROI 2023

Registration is closed for in-person registration. Please click "New Registration" to start your virtual registration. Use the same email address that you received your invitation or application approved email notification. Please email CROIregistration@iasusa.org for assistance.

Answers to the most frequently asked questions can be found on the FAQ page. For questions or registration support, call (415) 544-9400 (country code 001) or email CROIregistration@iasusa.org Monday through Friday from 8:30 AM to 5:30 PM Pacific Time. For technical support or questions related to the registration site please email CROI@conferencedirect.com for assistance.