The Federal Ministry of Health has published an information sheet for people travelling to Germany in connection with the coronavirus.
If you are entering the Federal Republic of Germany and have spent time in a risk area within the 10 days prior to entry, according to Land law you are generally required to proceed directly to your own home, or other suitable accommodation, immediately upon arrival and remain exclusively at this location for a period of 10 days after your entry into the country (quarantine). Violations can be punished as an administrative offence with a fine of up to 25,000 euros.
A risk area is any country or region outside of the Federal Republic of Germany for which, at the time of entry into the Federal Republic of Germany, an increased risk of infection with the SARS-CoV-2 coronavirus exists. The Robert Koch Institute maintains a continually updated list of risk areas.
Before entering the country, you are required to register (registration form) and carry the confirmation with you when travelling. This confirmation will be checked by your carrier and potentially also by the Federal Police in the context of the entry control. Moreover, the Federal Police also carries out such border controls when performing its border police duties (e.g. if you enter Germany by road).
Should you, for want of the necessary technical equipment or because of a technical malfunction, be unable to conduct a digital registration on entry, you will be required to fill out a substitute registration. Please refer to the substitute registration for information on where to submit it (e.g. to the carrier or to Deutsche Post E-POST Solutions GmbH, D-69990 Mannheim).
Furthermore, you must possess proof of testing within a maximum of 48 hours after entering the country and present it to your local authority within 10 days of your entry if requested to do so. Valid proof is a medical certificate or a negative test result for infection with the SARS-CoV-2 coronavirus.
If you are travelling from an area with a particularly high risk of SARS-CoV-2 infection, you must get tested before starting your journey, since you must be able to present proof to the local authority or Federal Police when entering the country should they request it. When using a carrier, you need to already present this proof to your carrier before starting your trip. Areas at particularly high risk are areas in which there is an especially high risk of introduction on account of the spread of mutations of the virus or a particularly high incidence rate. These are also published by the Robert Koch Institute (risk areas).
With regard to the obligation to quarantine, please refer to the law of the federal Land that applies to you and consider that, as a rule, the 10-day quarantine can only be lifted with a negative test result at the earliest after the fifth day following entry.
Even if you do test negative, you are required to contact your competent health office without delay should symptoms typical of an infection with the SARS-CoV2 coronavirus (difficulties breathing, newly developed cough, fever or loss of smell or taste) emerge within 10 days of entry into the country.