Changes

https://www.gesetze-im-internet.de/luftpersv/__125.html

The UK CAA issued FRTOL license can generally always be used in a UK-registered aircraft (i.e. with G-registration). For the time being, as long as the UK is part of EASA, the UK FRTOL will also be recognized in all other EASA Member States without any formal recognition process - so that the UK FRTOL license can also be used to make radio transmission registered in an aircraft registered in Germany, for example. However, once the UK leaves the EU, it also automatically ceases to be an EASA Member State - unless it applies to re-join and also principally recognizes ECJ rulings in the relevant areas, application for FRTOL Authorization ("Berechtigungsausweis", 47 EUR in Germany) is required. Nonetheless, the UK FRTOL exams and tests will (probably) principally also be recognized after the EU exit, so that (apart from paying 47 EUR) they have not to be re-taken even in the case of a "No Deal"-Brexit.