Even as the omicron variant loosens its grip on the world, destinations continue to require travelers to show proof of vaccination. And, increasingly, a paper CDC vaccination card is not cutting it. While the United States government has not issued a federal digital vaccine pass, a national standard has nevertheless emerged. To date, 21 states, the District of Columbia and Puerto Rico offer accessibility to the SMART Health Card, a verifiable digital proof of vaccination developed through the Vaccination Credential Initiative (VCI), a global coalition of public and private stakeholders including Microsoft, Salesforce, Oracle, the Mayo Clinic and other health and tech heavyweights.