From the Maryland State Board of Elections website –

Vote on Election Day

Due to a recent change in the law, we now mail every voter an application for a mail-in ballot. If you prefer to vote in person, early voting centers will be open from Thursday, July 7, 2022 through Thursday, July 14, 2022 from 7 am until 8 pm for the Gubernatorial Primary Election, and election day polling places will be open from 7 am until 8 pm on July 19, 2022 for election day. For the Gubernatorial General Election, early voting centers will be open from Thursday, October 27, 2022 through Thursday, November 3, 2022 from 7 am until 8 pm, and election day polling places will be open from 7 am until 8 pm on November 8, 2022 for election day. You may vote early at any early voting center in your jurisdiction of residence or at your assigned polling place on election day.