Maryland Public Safety Section 12-601
§ 12-601.
  (a)   In this subtitle the following words have the meanings indicated.
  (b)   "Authorized electrical inspection agency" means a nongovernmental organization approved by the State Fire Marshal to inspect electrical installations for conformity with the National Electrical Code or a local code.
  (c)   "Electrical installation" means any installed:
    (1)   electrical wires or conductors that transmit electric current for electric light, heat, or power purposes;
    (2)   molding, duct, raceway, or conduit for the reception or protection of wires or conductors; or
    (3)   electrical machinery, apparatus, device, or fixture.