McDonald, James2022-02-252022-02-25https://lib.digitalsquare.io/handle/123456789/77754This presentation by World Travel and Tourism Council (WTTC) provides policy and technical recommendations to achieve globally interoperable solutions for COVID-19 digital certificates needed to revive international travel.COVID-19 CertificatesPublic Key InfrastructureDigital Travel PortalAPISMART Health CardsDIVOCICAO Visible Digital SealEU Digital COVID CertificatePresentation