For technical questions with regard to the registration process or hotel reservations, please contact the registration and housing partner (SPARGO, Inc.):
By Mail
CROI Registration and Housing Center
11208 Waples Mill Rd
Suite 112
Fairfax, VA 22030
By Phone/Fax/Email
Phone: 833-229-0649 (International) or 703-449-6418 (within the United States)
Fax: 703-574-8332
Email: CROIregistration@spargoinc.com,
CROIHousing@spargoinc.com
Customer service hours: M-F 8:30 am - 5:00 pm (Eastern Time)
Stay Connected to IAS-USA
For questions with regard to the Conference, please contact IAS-USA via email - CROIinfo@iasusa.org