The operation and repair of a ship's or station's electrical power plant and electrical equipment is the responsibility of EMs. They also maintain and repair power and lighting circuits, distribution switchboards, generators, motors and other electrical equipment.
EM Electrician Mate (1921-
EMCBC Electrician's Mate Construction Battalion Communication EMCBD Electrician's Mate Construction Battalion Draftsman EMCBG Electrician's Mate Construction Battalion General EMCBL Electrician's Mate Construction Battalion Line and Station EMSRG Electrician's Mate Ship Repair General Electrician EMSRS Electrician's Mate Ship Repair Shop Electrician EMSRT Electrician's Mate Ship Repair Interior Communications Repairman EMP Electrician's Mate Power and Light EMS Electrician's Mate Shop