Delaware Code
Chapter 19. REGISTRATION OF MEMBERS OF THE ARMED FORCES, RELATED ORGANIZATIONS AND CITIZENS RESIDING OUTSIDE OF THE TERRITORIAL LIMITS OF THE UNITED STATES
§ 1902. Application by persons eligible to register to vote under the provisions of this chapter.

(a) A citizen and permanent resident of the State of Delaware who maintains a residence in the State may submit a State of Delaware Voter Registration Application or any registration application promulgated by the federal government.
(b) A citizen eligible to vote under the provisions of this chapter who does not maintain a residence within the State of Delaware may register to vote by submitting a federal Post Card Application, federal Write-in Absentee Ballot, or any other registration application promulgated by the federal government under the provisions of the UOCAVA [52 U.S.C. § 20301 et seq.] as amended.
(c) The deadline for the Department to receive an application to register to vote under the provisions of this chapter is the third Monday prior to a primary or general election. Applications received after a deadline shall be held and processed on the first business day following that election.
(d) The Department shall accept electronic transmissions of signed registration applications specified in this section.
(e) The Department shall immediately notify any person whose application to register to vote was rejected and provide such person the reason or reasons for rejection and information on how to appeal the rejection.