A COVID Vaccine Certificate (CVC) issued by the government gives the beneficiary assurance regarding the immunization, the type of vaccine used, and the next vaccination due date.  Additionally, it serves as proof that the citizen is immunized for any organizations that may need it, particularly if they are traveling.  By immunizing them against sickness, people are also less likely to spread the infection to others. Therefore, it may be necessary to present a certificate in the future for specific social interactions and international travel.