Maryland Statutes
Subtitle 3 - Certification of Superintendents, Operators, and Industrial Operators
Section 12-301 - Certification Required

(a)    Except as otherwise provided in this section, an individual shall be certified by the Board in an appropriate classification before a waterworks, wastewater works, or industrial wastewater works may employ the individual as:
        (1)    A superintendent; or
        (2)    An operator or industrial operator in a job function determined by the Secretary.
    (b)    This section does not prevent a governmental agency or a person from continuing to employ in a waterworks, wastewater works, or industrial wastewater works, until July 2, 1982, an operator or industrial operator who is not certified under this title.