Only official ballots shall be validated and counted. Improper ballots or votes shall be deemed invalid and not counted. Improper ballots or votes shall include, but are not limited to:
No qualified voter shall cast more than one ballot, in any form, in an election or vote in a category other than the category in which he or she is a qualified voter. Duplicate or unauthorized ballots or votes shall be deemed improper and not counted.
Nothing contained in Section 1518.1 of these Rules shall be construed as invalidating any ballot solely because of a voter's failure to follow the instructions for filling out an official ballot provided pursuant to Section 1517.3(a) of these Rules. If a voter draws an arrow pointing to an eligible candidate's name, circles an eligible candidate's name or the voting box next to an eligible candidate's name, places a check, asterisk, or other mark in such a manner that clearly indicates his or her intended choice, the ballot shall be considered valid and shall be counted as a vote for such eligible candidate.
The election official shall make determinations of the validity of ballots or votes. The determination of the election official in charge as to the validity of any ballot or vote shall be final and only subject to further administrative review at the discretion of the Executive Director.
Any ballot counter or authorized watcher who is uncertain whether a ballot or vote is valid shall refer the ballot to the election official in charge for a determination.
No ballot counter shall mark on any ballot. The election official in charge may only mark a ballot to denote that the ballot has been determined to be invalid. The election official in charge shall initial the ballot below his or her marking. A ballot determined to be invalid shall remain in the custody of the election official in charge and stored in a secure location, separate from ballots deemed valid.
D.C. Mun. Regs. tit. 7, r. 7-1518