If you require a U.S. visa to attend ONA26, you may request a confirmation of registration document only after you have completed registration for the conference and paid the conference registration fee, if applicable.
If your visa application is not approved or you are otherwise unable to attend ONA26, your registration purchase will be refunded in full and you will not incur an administrative fee. (Refunds outside of the United States may incur additional fees from your financial institution. ONA is not responsible for these fees.)