How is the national electoral register created?

Germany, Federal Elections Act (1993, last amended 3 June 2021), accessed 27 December 2021

Section 17. Voters' Register and Polling Card

(1) The local authorities of the municipality shall maintain a register of persons eligible to vote for each polling district. A person eligible to vote shall have the right to verify that the data entered on his person in the voters' register are correct or complete on the working days between the twentieth and sixteenth days before the election during normal opening hours. To verify that the data of other persons entered in the voters' register are correct or complete, a person eligible to vote shall only have the right to consult the voters' register during the period specified in the second sentence if he produces facts confirming that the voters' register is incorrect or incomplete. The right to verify data specified in the third sentence shall not apply to data of persons eligible to vote against whose names restriction notes have been entered in the population registers in accordance with Section 51 subsection (1) of the Federal Act on Registration.