Md. Code, Election Law § 1–304

This article does not preempt restrictions on political activities that are:

(1) provided in or authorized by the Montgomery County Charter; and

(2) imposed on any of the following individuals:

(i) an officer or employee of the Montgomery County government who serves in a quasi-judicial capacity; or

(ii) a member of a Montgomery County government board or commission who serves in a quasi-judicial capacity.