Abstract
The outbreak of the COVID-19 pandemic and the closure of the borders have slowed down progressive internationalization. Travel not only consists of tourist trips but also business trips. This comment emphasizes the necessity to implement The Digital Green Certificate (Covid passport) and presents the process of its implementation as a complex project on an international scale. The considerations summarize that the implementation of the Covid passport will be successful when the negative impact the pandemic has on travel is eliminated and the number of travelers returns to the level before the restrictions were introduced.