Del. Code tit. 29 § 805
The apportionment provided for by this chapter shall continue in effect until the official reporting by the President of the United States of the next federal decennial census. Within 120 calendar days following the receipt, by the entity designated by the Governor, of the federal decennial census data for redistricting pursuant to Public Law 94-171, the General Assembly shall reapportion and redistrict the State, wherever necessary, for the general election of 2032 and thereafter in such a manner that the several representative and senatorial districts shall comply, insofar as possible, with the criteria set forth in § 804(1)-(4) of this title. Such apportionment shall thence continue in effect until the next succeeding federal decennial census.
29 Del. C. § 805