Maryland Code, Public Safety § 12-834

(a) A licensed elevator contractor shall notify the Board if there are no licensed elevator mechanics available to perform elevator work.

(b) The licensed elevator contractor may request that the Board issue temporary elevator mechanic licenses to individuals certified by the licensed elevator contractor to have an acceptable combination of documented experience and education to perform elevator work without direct and immediate supervision.

(c) An individual certified by a licensed elevator contractor as qualified under subsection (b) of this section shall:

(d) A temporary elevator mechanic license is valid for 30 days while the licensee is employed by the licensed elevator contractor that certified the licensee as qualified under subsection (b) of this section.

(e) A temporary elevator mechanic license may be renewed as long as the shortage of licensed elevator mechanics continues.