Maryland Code, HEALTH OCCUPATIONS 4-206.3
(1) Is physically present on the premises; and
(2) Prescribes the administration of local anesthesia by the dental hygienist.
(b) (1) Before a dental hygienist may administer local anesthesia under subsection (a) of this section, the dental hygienist shall successfully complete the following:
(i) Any educational requirements established by the Board; and
(ii) A written and clinical examination as required by the Board.
(2) A dental hygienist shall obtain the education required under paragraph (1) of this subsection from an accredited dental hygiene program.
(3) A dental hygienist who successfully completed the education requirements and examination required under paragraph (1) of this subsection before October 1, 2011, shall take and successfully complete a refresher course and a clinical examination from an accredited dental hygiene program.