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EPB Usage Map

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Map of the U.S. showing county-level electronic poll book (EPB) usage by classification. Dark navy = commercial EPBs, burnt orange = in-house EPBs, light blue = EPBs in use but unclassified, and light gray = paper poll books. Most counties use commercial systems, while in-house use is concentrated in Michigan, Colorado, North Carolina, Wisconsin, and Puerto Rico. Several Midwest and New England counties still rely on paper. Territories are included in insets.