The changes caused by the corona pandemic affect many areas of life. Difficulties arise here especially by traveling. To offer as much freedom of movement as possible, the EU-States have agreed on a uniform procedure.
Therefore, the risk within the regions is determined by common criteria. The areas are divided into the colours green, orange, red, dark red and grey. On this basis the member states can take appropriate measures. These differs in individual case, so it is worth checking the legal situation before entering the country. You can find information on entering the EU countries from the following overview:
For travellers from third countries there are also travel restrictions. The commission recommends lifting of restrictions for Australia, New Zeeland, Rwanda, Singapore, South Korea, Thailand and China (in case of mutuality). Further residents of Andorra, Monaco, San Marino and Vatican has to be handled like EU-citizens.
During the corona pandemic the mobility in Europe and the world is highly limited. Therefore it makes sense to find out about the travel conditions on the official homepages before travelling.