*Proof must be provided digitally via the Corona Warn app or the CovPass app of the RKI and in conjunction with a photo ID. Exceptions apply for persons who cannot be vaccinated against SARS-CoV-2 for medical reasons and can prove this by means of a medical certificate, and provided that they’re able to show a PCR test that is no more than 48 hours old. As well as children under 12 years of age if they have tested negative. (Testing is not compulsory for children under the age of six and for schoolchildren.)