The association on Thursday (26 August) praised the European Commission for its leadership on the matter, and the speed with it was able to develop and roll-out the DCC.
Deputy director general Conrad Clifford said in the absence of a global standard, the EU DCC should "serve as a blueprint to other nations".
"The DCC was delivered in record time to help facilitate the reopening of EU states to travel," said Clifford.
"In the absence of a single global standard for digital vaccine certificates, it should serve as a blueprint for other nations looking to implement digital vaccination certificates to help facilitate travel and its associated economic benefits."
Iata said the DCC met several key criteria vital to an effective digital vaccination certificate. These include the ability for it to be provided in both paper and digital formats, and for all key information to be delivered via QR code across both formats for security and data privacy reasons.
Finally, Iata said the DCC was designed in such a way as to make it easy to verify and authenticate digitally.
"The European Commission has built a gateway through which the encrypted data used to sign DCCs and required to authenticate certificate signatures can be distributed across the EU," said Iata.
"The gateway can be also used to distribute encrypted data of non-EU certificate issuers other issuers. The EU has also developed a specification for machine readable validation rules for cross-country travel."
The DCC has been implemented across all 27 EU member states, with several reciprocal agreements reached with other states own vaccination certifications – including Switzerland, Turkey, and Ukraine.
Iata added that in the current absence of a single global standard for digital vaccine certificates, as many as 60 countries were currently looking at using the DCC specification for their own regimes.
"The DCC is an excellent model as it is consistent with the latest World Health Organization guidance and is fully supported by Iata Travel Pass," the association added.
"Another benefit of the DCC is that it enables holders to access non-aviation sites in Europe that require proof of vaccination, such as museums, sporting events and concerts.
"Iata wishes to offer its collaboration to the EU Commission and any other interested state to further integrate the DCC into airline processes for a secure and seamless passenger experience, such as support for selective disclosure of personal data."
