A "mark within a voting target that does not conform to manufacturer specifications for a reliably detectable vote. ... The word "marginal" refers to the limit of what is detectable by an SCANNER, not the margin of the page." VVSG. OPTCIAL 2007
What is a marginal mark on a ballot?
The term Marginal Mark refers to a mark that falls near the edge of, but not clearly within, the designated voting target and may require interpretation under ballot-adjudication rules. It gives election, security, legal, or technical readers a specific label for the concept rather than a broader everyday meaning.
How are marginal marks reviewed?
Marginal marks are reviewed under the jurisdiction's ballot-adjudication standards to determine whether they show a valid expression of voter intent. Reviewers may examine the mark's location, shape, consistency, and surrounding selections while following bipartisan or multi-person procedures where required. The decision and any changed interpretation should be documented in the election record.
Can a marginal mark cause a ballot to need adjudication?
Yes. A mark near the edge of a voting target can be ambiguous enough that a scanner does not interpret it confidently or election rules require human review. The ballot may then be sent to adjudication so authorized reviewers can apply the jurisdiction's voter-intent standards and determine whether the selection should be counted.
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A "mark within a voting target that does not conform to manufacturer specifications for a reliably detectable vote. ... The word "marginal" refers to the limit of what is detectable by an SCANNER, not the margin of the page." VVSG. OPTCIAL 2007
Cite this term
Election Security Glossary. (2026). Marginal Mark. In Election Security Glossary. Retrieved August 17, 2026, from https://electionsecurityglossary.com/glossary/marginal-mark
Sources
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