Md. Code, Criminal Law § 13–407

(a) In this section, “bingo” includes the game of instant bingo.

(b) A bona fide religious, fraternal, or charitable organization, or a volunteer fire company operating in a community that does not have a paid fire department, may conduct bingo in the county:

(1) for the benefit of charity in the county; or

(2) to further the purposes of the organization.