The Ministry of Health has revealed more details about its vaccine certificate system, which will be available later this month.
In a statement, the ministry announced that two seperate 'vaccine passes' will be put into play - one for domestic use and another for international travel.
'My Vaccine Pass' will be an official record of a person's Covid-19 vaccination status and will help people access places within New Zealand that require proof of vaccination.
A separate pass will be used for international travel, which will be available shortly.
Data will be carried in a QR code, and the ministry is building a free app to scan the vaccine pass.
The ministry said it was also building a verifier app that would be available for free on the App Store and Google Play, for anyone to use to scan and verify a My Vaccine Pass.
National digital services group manager Michael Dreyer said these new details should provide clarity around how vaccine passes would work.
"It is important for businesses to check out the approach being taken and start considering how best to make this a part of how they operate," Dreyer said.
"We have been talking to events companies, tourism operators, and other businesses to understand their requirements for verification.
"The ministry's Verifier App can be used for in-person verification, however if companies would like to introduce more sophisticated capabilities, such as integration into existing digital journeys or pre-verification processes, then the technical specification provides enough details for them to do so."
The ministry has contracted New Zealand tech company MATTR to create both vaccination passes for use domestically and internationally.
MATTR has developed existing technology platforms designed for similar use cases, the ministry said.
"It was important for the ministry to work with a New Zealand tech company that understood the need for the public to have a secure digital record of their vaccine status," Dreyer said.
Vaccination certificates can be claimed through the MyCovidRecord app, which is operated by the ministry.