Most readers are likely now familiar with the initial travel guidance for international travel issued by the U.S. Centers for Disease Control and Prevention (CDC). Since then, governors have taken the lead in issuing orders related to COVID-19 for, among other things, closing businesses, mandating citizens stay home, and only permitting essential businesses to operate. Along with those orders, many have issued guidance related to quarantines for out-of-state travelers, including those who have only traveled domestically within the United States. Many of these orders are expressly aimed at discouraging interstate travel other than for essential services.