Maryland Education Section 6-105

      (a)      Each teacher in a public school of this State shall have a duty-free lunch period each regularly scheduled school day.

      (b)      This duty-free period shall be for at least 30 minutes, unless the students have a regular lunch period of less than 30 minutes in which case the duty-free period shall be the same as the regular lunch period.

      (c)      Each county board may employ teacher aides to carry out the purposes of this section.