Delaware Code
Chapter 56A. Voting by mail ballot [For application of this chapter, see 83 Del. Laws, c. 353, § 6]
§ 5615A. Challenges [For application of this chapter, see 83 Del. Laws, c. 353, § 6].

(a) A mail ballot may be challenged for any of the following:

(1) The same causes and in the same manner as provided in this title for other voters.
(2) That the statement in the center of the face of the ballot envelope is not signed as required under § 5608A(a)(2) of this title.
(3) The ballot envelope does not contain the elector's state-issued driver's license number or state-issued nondriver identification card, or the last 4 digits of the elector's Social Security number, as required under § 5608A(a)(2) of this title.
(b) (1) If a challenge is made under paragraph (a)(1) of this section, an election judge shall return the ballot to its ballot envelope, shall mark the ballot envelope as “CHALLENGED” and shall set the ballot envelope aside in a secure location for consideration at a later time as provided elsewhere in this title.
(2) If a challenge is made under paragraph (a)(2) of this section, an election judge shall mark the ballot envelope as “CHALLENGED” and shall set the ballot envelope aside in a secure location for consideration at a later time as provided elsewhere in this title.
(c) All challenges to mail ballots voted in a particular election district must be resolved before the counting of votes in that election district may be considered complete. Any challenge not resolved by the election judges within a reasonable time of the challenge having been made must be referred for resolution to the county director and county deputy director of the Department in the county where such election district is located.

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