RFC 2350
The current description according to rfc 2350 of Austrian HealthCERT can be found at:
https://a-healthcert.at/wp-content/uploads/2024/12/rfc2350_austrian_health_cert_v1-7.txt
A PGP-signed version of the document may be found at:
https://a-healthcert.at/wp-content/uploads/2024/12/rfc2350_austrian_health_cert_v1-7.txt.asc