Information is based on travel restrictions for travel to Green Bay Austin-Straubel within the United States Most visitors from United States need to provide a negative COVID-19 test result and/or quarantine to enter Green Bay Austin-Straubel. COVID-19 testing requirements Visitors from United States are not required to present a negative COVID-19 PCR test or antigen result upon entering Green Bay Austin-Straubel. Quarantine requirements Visitors from United States are not required to quarantine after entering Green Bay Austin-Straubel.