Maryland Code, Criminal Law § 13-2104

(1) a bona fide religious group that has conducted religious services at a fixed location in the county for at least 3 years before the application date;

(2) a volunteer fire company or volunteer rescue squad, regardless of whether the company or squad is supported by tax revenues, or an auxiliary unit whose members are associated directly with the company or squad;

(3) a nationally chartered veterans' organization, or an auxiliary unit whose members are associated directly with the organization; or

(4) a nonprofit organization that: