Primary definition
(opscan) A that is intended as a vote but which does not conform to the manufacturer's MARK specifications. VVSG. Cf. MARK. 2007 EXTRANEOUS MARK, PERFECT
Also known asambiguous mark · non-conforming mark · irregular mark
1 sources cited4 related termsReviewed Aug 9, 2026
— Electronic Voting GlossaryView source
Understand more election terms clearly
Get one important election term explained each week, with authoritative sources, practical context and related definitions.
Free. One useful email each week. Unsubscribe anytime.Learn more about the ESG newsletter →
EVG
Carnegie Mellon University
(opscan) A that is intended as a vote but which does not conform to the manufacturer's MARK specifications. VVSG. Cf. MARK. 2007 EXTRANEOUS MARK, PERFECT
Electronic Voting Glossary · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Imperfect Mark. In Election Security Glossary. Retrieved August 13, 2026, from https://electionsecurityglossary.com/glossary/imperfect-mark
Sources
1 cited · last checked Aug 9, 2026
01
Electronic Voting Glossary
Electronic Voting Glossary
Single-source
Get the weekly election term
Receive one cited, source-backed election explanation in your inbox each week.
Get election terms explained weekly →
Free · Nonpartisan · Unsubscribe anytime.