To ensure safety for all in-person participants in Chicago, IL, and unless otherwise prohibited by applicable law, 2022 OCACS Annual Meeting is a COVID-19 VACCINATION REQUIRED event for all attendees, exhibitors, and staff. Proof of COVID-19 vaccination will be required. In the event one is not vaccinated due to health or religious reasons, results of a daily (taken within 24 hours prior to each meeting day) negative test must be submitted each day of participation. Self-administered tests will not be accepted. Lastly, ACS requires that masks be worn by all attendees, exhibitors, and staff at all times.