Del. Code tit. 29, § 841

Maps of the several representative and senatorial districts shall be prepared by the Department of Elections. The maps shall be certified as to correctness by the President of the State Board of Elections and the State Election Commissioner and recorded in the offices of the recorder of deeds for the respective counties. Two true and correct copies of these maps shall also be filed, within 10 business days of becoming final, in the offices of the State Department of Elections and provided to the respective state chairpersons of the 2 major political parties and the State Archivist and Records Administrator.