People travelling from Britain to Germany will have to quarantine from midnight on Monday – and also provide a negative COVID test.
Regional health ministers urged the national government on Saturday to introduce tougher rules amid surging cases of the Omicron variant in the UK.
They called for a two-week quarantine period, including for vaccinated travellers.
It comes a few days after France announced a ban on travel to and from the UK unless there is a “compelling” reason. Tourism and business do not qualify.
That order came in to force at 11pm on Friday.