Health and Safety Protocols

ASTRO looks forward to welcoming attendees to San Antonio in October. As the health and safety of our attendees and exhibitors is our highest priority, ASTRO will be implementing protocols that seek to ensure the safety of those attending the meeting.

ASTRO will be closely monitoring federal, state and local recommendations and will update these protocols based on the current conditions at the time of the meeting. We encourage attendees to continue to check this page for the latest information and updates.

Vaccination Requirement

All in-person attendees at the ASTRO Annual Meeting must be up-to-date with their COVID-19 vaccine as per CDC guidelines by the time of the meeting. In the case of a valid medical or religious exemption, attendees must obtain a negative COVID-19 PCR test result within 48 hours prior to arriving at the meeting. During the registration process, all attendees must attest to meeting ASTRO’s vaccination requirement.

Travel from Outside the United States

At this time, non-U.S. citizens are required to show proof of being fully vaccinated against COVID-19 before boarding a flight to the United States from a foreign country. Travel guidance is subject to change at any time. International attendees are encouraged to check current travel restrictions by visiting the CDC website and country-specific COVID-19 requirements provided by the U.S. Department of State.

COVID-19 Waiver and Assumption of Risk

All attendees who register to attend the ASTRO Annual Meeting are required to acknowledge that they are aware of the inherent risk of exposure to the COVID-19 virus while attending the in-person meeting and that COVID-19 is a highly contagious disease that can lead to severe illness and death. Further, attendees voluntarily assume all risks related to exposure to COVID-19 when attending the in-person ASTRO Annual Meeting and events and WAIVE LIABILITY AGAINST ASTRO, ITS OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, CONTRACTORS AND VOLUNTEERS FOR ANY LOSS, DAMAGES, OR SUFFERING RELATED TO EXPOSURE TO COVID-19.


The Henry B. Gonzalez Convention Center has been recertified with GBAC STARTM Service accreditation from the Global Biorisk Advisory Council, a division of the International Supply and Sanitary Association (ISSA), the worldwide cleaning association. This accreditation program assesses cleaning and disinfection practices and infectious-disease prevention.


If you have questions regarding ASTRO’s health and safety protocols, please contact us at

American Society for Radiation Oncology
251 18th Street South, 8th Floor
Arlington, VA 22202
Telephone: 703-502-1550


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