In 2007, the Maryland General Assembly unanimously decided the state would go back to using paper ballots.
The decision came after concerns from voters that there wasn't a paper trail to verify votes.
Funding for the paper systems became available in October 2014. The contract went before the Board of Public Works two months later and was approved.
According to the State Board of Elections, this system is a voter-verified paper based solution. All marked paper ballots are scanned, and anything outside the of box alerts voters that the ballot needs to be corrected.
Election officials can compare ballots marked by voters with the results if need be, and all paper ballots are stored by the local board of elections for auditing and recounting.
The system was put in place and used in the 2016 primary and general elections.