Marginal Mark

Primary definition

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

Also known asmarginal marks · marginal marking · marginal scan mark · marginal vote mark · marginal ballot mark · marginal optical mark · marginal OMR mark · marginal scanner mark · marginal detectability mark · marginal mark (VVSG) · marginal mark (optical) · marginal mark (scanner) · marginal mark (ballot)
1 sources cited4 related termsReviewed Aug 9, 2026
Electronic Voting GlossaryView source
People also ask

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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EVG
Carnegie Mellon University

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

Electronic Voting Glossary · 2024

Cite this term

Permanent URL · stable across revisions
Election Security Glossary. (2026). Marginal Mark. In Election Security Glossary. Retrieved August 17, 2026, from https://electionsecurityglossary.com/glossary/marginal-mark

Sources

1 cited · last checked Aug 9, 2026

01

Electronic Voting Glossary
Electronic Voting Glossary

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