Maryland Code, Election Law § 10-302

(a) In a timely manner for each election, the local board shall provide for the delivery to each polling place the supplies, records, and equipment necessary for the conduct of the election.

(b) Each polling place shall be equipped with a computer device that contains a record of all registered voters in the county and that is capable of being networked to other polling place computer devices.

(c) Each polling place and early voting center shall have a paper or electronic backup copy of the election register available for the use of the election judges if the computer devices required under subsection (b) of this section do not function properly during an election.