# Compliance with internationally used COVID-19 certificate schemas
Digitally verifiable certificates have emerged as a solution to help open up businesses and travel globally during the ongoing COVID-19 pandemic. There are four major COVID-19 certificate schemas popularly used in the world today:
* [EU-DCC](/v2-2/platform/divocs-verifiable-certificate-features/divocs-eu-dcc-adapter-service.md)
* [DIVOC (native COVID-19 certificate schema)](/v2-2/platform/divocs-verifiable-certificate-features/divocs-native-covid-19-certificate-specification.md)
* [Smart Health Cards](/v2-2/platform/divocs-verifiable-certificate-features/divocs-shc-adapter-service.md)
* ICAO-VDS
As the interoperability of these certificate schemas is critical to streamline the international travel process, DIVOC has added the ability to issue digital certificates in the EU-DCC and SmartHealthCard formats, in addition to the [**native DIVOC COVID-19 certificate format**](/v2-2/platform/divocs-verifiable-certificate-features/divocs-native-covid-19-certificate-specification.md). This will enable citizens of a country, which is using a DIVOC certificate system, to export their native certificates in a format that is acceptable in the travel destination country.
Note: DIVOC will also add the capability to export the certificates in the ICAO-VDS format in 2022.
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