The University Travel Guidance is subject to change. The most recent update was 9/1/2022. As of that date, a new travel requirement was that international travel be registered in advance with International SOS. Using a Harvard-preferred travel vendor means that you will be automatically registered for International SOS with your booking. Please see the University's 9/1/22 Travel and Reimbursement Guidance, and the Travel and Reimbursement information on this site