People who can prove that are recovered from COVID-19 are exempted from contact quarantine; 16/08/2021: events and companies will be able to use Covid-19 certificates. This means that a 'reduced protection concept' can be used for vaccinated; tested or recovered visitors and guests; provided that access is restricted to people with a certificate; 15/09/2021: A certificate that proves vaccination; recovery or a negative test is compulsory for restaurants; bars and clubs as well as for discos; dance halls and businesses in the fields of culture; entertainment and leisure. In outdoor areas; the request for a certificate is optional. Events with more than 50 people may only be held with participants who have a valid Covid-19 certificate. Events with fewer than 50 people; as well as religious events and funerals; are not subject to the certificate requirement.; 03/12/2021 The limit for the certificate requirement for outdoor events will be reduced from 1;000 to 300 people.; 07/12/2021 A certificate is required also for private events with more than ten people.; 01/04/2022 The remaining measures to contain the Covid-19 pandemic and the Covid-19 daily allowance expire on Thursday; March 31st.;