System Limits

Election Definition Limits

Limit Type	Per	Value
Precincts	Election	1000
Candidates	Election	1000
Contests	Election	1000
Ballot Styles	Election	1000
Candidates	Contest	100
Vote For	Contest	50
Characters	Field Name	100

Component Limits

VxAdmin

• The total number of CVRs that can be imported is limited by the total disk space on the laptop (~200GB). The exact number of CVRs depends ballot size, ballot selections, tabulator used (VxScan or VxCentralScan), and other factors that determine expected CVR size.

VxCentralScan

• The total number of ballots scanned is limited by the total disk space on the laptop (~200GB). The exact number of ballots depends on ballot size, complexity, and selections made that influence determine the CVR and ballot image sizes.

• VxCentralScan is limited by the batch scanner maximum tabulation rate: Maximum Tabulation Rate

VxMark

• VxMark only supports 8" x 13.25" ballots as specified in Paper Ballot Specifications.

• VxMark is limited to printing of 50 contest selections before needing to reduce text size to fit a summary ballot on a single sheet. VxMark can print a maximum of 100 contest selections with text-size reduction.

• The ballot box supports up to 200 ballots before needing to be cleared.

• VxMark can activate, mark, verify, and cast up to 20 ballots per hour. Exact rate depends on time spent by user marking and verifying a ballot before casting.

VxScan

• The ballot box supports up to 3000 ballots in the main compartment before needing to be cleared.

• The ballot box auxiliary compartment supports up to 100 ballots before needing to be cleared. Ballots longer than 19" must be folded.

• Total ballots scanned for a given VxScan configuration are limited to 10,000 ballots. This limit is set based on the disk space available on specified external disks to ensure adequate disk space in the case of needing to re-sync CVRs.

• Ballot tabulation rate depends on election content / ballot length. A typical 11" ballot sheet is scanned and tabulated in 3 seconds.

• An user can feed a ballot sheet every 10 seconds. At that feeding rate, the maximum tabulation rate is 360 sheets per hour.

Hand Marked Paper Ballots

In addition to the design requirements specified in Hand Marked Ballots, ballots are constrained by the following limits.

Bubble Positions

VxSuite hand marked paper ballot interpretation supports fractional grid coordinate positions, which enable bubble positions to be placed anywhere within the timing mark grid. However, the density of bubbles on a given ballot is limited to the total number of timing mark grid intersections to ensure accurate interpretation.

For an 11" ballot, which has a 32 x 39 timing mark grid, the maximum number of ballot positions is 1248 per page or 2496 per sheet. The maximum number of ballot positions increases for longer ballots due to the longer grid.

Candidates Per Contest

The total number of candidates per contest is limited by ballot design requirements restricting contest options to one column and one page (7.3-B.1). Therefore, the maximum number of candidates in a contest is the maximum number of bubble positions in a column. For a 22" ballot, there is a maximum of 83 possible bubble positions in a column. The maximum number of candidates per contest may be lower than 83 when accounting for instructional text and contest information in the ballot design.