NOTICE: Montana Voting System Certification Event
January 25, 2022 Voting System Application
August 27, 2019 Voting System Application
Voting System and Component Certification Application
Voting Systems and Components Certified for Use in Montana
September 21, 2017 Voting System Certification Event Agenda
July 12, 2017 Voting System Application
Montana’s paper ballots may be counted in two ways: hand count or with paper ballot optical or digital scan tabulators. Either way ALL Montanans vote on a paper ballot. Following is a list of the voting systems being used, by county.
Paper ballot tabulators
Model 650 (optical scan), DS850 (digital scan), and DS450 (digital scan) are central count tabulators; Model 100 (optical scan) and DS200 (digital scan) are precinct-level tabulators. Tabulators are not connected to the Internet.
Counties conduct a public test of tabulators before each primary and general election. Additionally, a random test is conducted on election day. A Post-Election Audit is conducted by each county that uses tabulators after federal elections. The post-election audit consists of a hand-count of randomly selected contests and precincts.
See the table below to view which method of paper ballot tabulation is used in each county.
| County | Ballot Tabulation Method(s) |
| Beaverhead | ES&S DS450 |
| Big Horn | ES&S DS850 |
| Blaine | ES&S DS450 |
| Broadwater | ES&S Model 100 |
| Carbon | ES&S DS200 |
| Carter | ES&S DS200 |
| Cascade | ES&S DS850 |
| Chouteau | ES&S DS200 |
| Custer | ES&S DS200 |
| Daniels | Hand Count Paper Ballots |
| Dawson | ES&S DS200 |
| Deer Lodge | ES&S DS450 |
| Fallon | Hand Count Paper Ballots |
| Fergus | ES&S Model 450 |
| Flathead | ES&S DS850 |
| Gallatin | ES&S DS850 |
| Garfield | Hand Count Paper Ballots |
| Glacier | ES&S DS200 |
| Golden Valley | Hand Count Paper Ballots |
| Granite | ES&S DS450 |
| Hill | ES&S DS450 |
| Jefferson | ES&S DS450 |
| Judith Basin | ES&S DS200 |
| Lake | ES&S DS450 |
| Lewis and Clark | ES&S DS850 |
| Liberty | ES&S DS200 |
| Lincoln | ES&S DS450 |
| Madison | ES&S DS450 |
| McCone | Hand Count Paper Ballots |
| Meagher | Hand Count Paper Ballots |
| Mineral | ES&S DS200 |
| Missoula | ES&S DS850 |
| Musselshell | ES&S DS200 |
| Park | ES&S DS450 |
| Petroleum | ES&S DS200 |
| Phillips | ES&S DS200 |
| Pondera | ES&S DS200 |
| Powder River | Hand Count Paper Ballots |
| Powell | ES&S DS450 |
| Prairie | Hand Count Paper Ballots |
| Ravalli | ES&S DS850 |
| Richland | ES&S DS450 |
| Roosevelt | ES&S DS450 |
| Rosebud | ES&S DS200 |
| Sanders | ES&S DS850 |
| Sheridan | ES&S DS200 |
| Silver Bow | ES&S DS850/DS450 |
| Stillwater | ES&S Model 100 |
| Sweet Grass | ES&S DS200 |
| Teton | ES&S DS200 |
| Toole | ES&S DS200 |
| Treasure | Hand Count Paper Ballots |
| Valley | ES&S DS200 |
| Wheatland | Hand Count Paper Ballots |
| Wibaux | ES&S DS200 |
| Yellowstone | ES&S DS850 |