Maryland Environment Section 12-305
§ 12-305.
  (a)   The Board shall certify any applicant who meets the requirements of this title and of any applicable rule or regulation adopted under this title.
  (b)   The Board may issue a temporary certification to any applicant who lacks the experience or the education that is acceptable to the Board for certification, if the applicant:
    (1)   Applies for certification under § 12-303 of this subtitle; and
    (2)   Complies with any applicable rule or regulation adopted under this title for this purpose.
  (c)   The Board may issue a limited certification to any uncertified operator or industrial operator who:
    (1)   On or before July 1, 1982, submits an application to the Board on the form that the Board requires;
    (2)   Is employed in a waterworks, wastewater works, or industrial wastewater works; and
    (3)   Complies with any applicable rule or regulation adopted under this title for this purpose.