Under the German Nationality Act “Staatsangehörigkeitsgesetz”, the moment a German citizen acquires citizenship of another country, he or she loses German citizenship automatically because German law does not allow dual citizenship in this context. This means that if a US resident wishes to obtain US citizenship while retaining his or her German citizenship, the applicant must first petition the German government to allow the applicant to maintain his or her German citizenship. This requirement is unique to German citizens, and provides an additional, preliminary step before the applicant may apply for US citizenship.
In the case of an applicant who is a Legal Permanent Resident, or habitually resides outside of Germany, particular consideration is given to whether the applicant has a continuing relationship with Germany, and if he or she will suffer disadvantages or hardship if he were unable to naturalize as an American due to this rule. Continue reading