Electrician’s mate

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Electrician’s mate
Rating Badge EM.jpg
Rating insignia
Issued by: United States Navy
Type Enlisted rating
Abbreviation EM
Specialty Engineering

Electrician’s Mate Third Class Craig Combs working on a 115 volt breaker

Electrician’s mate (abbreviated as EM) is a United States Navy and United States Coast Guard occupational rating.

Electrician’s mates stand watch on generators, switchboards, control equipment and electrical equipment; operate and perform organizational and intermediate maintenance on power and lighting circuits, electrical fixtures, motors, generators, voltage and frequency regulators, controllers, distribution switchboards and other electrical equipment; test for short circuits, ground or other casualties; and rebuild electrical equipment, including solid state circuitry elements, in an electrical shop.[1]

A subset of electrician’s mates go through the Naval Nuclear Power Training Command and are employed onboard nuclear-powered ships and submarines to maintain the control subsystems in nuclear reactors.

The Armed Services Vocational Aptitude Battery minimum scores required for the EM rating must be 209 and are the sum of: [1]

Sum of word knowledge and paragraph comprehension
Arithmetic reasoning
Mathematics knowledge
Mechanical comprehension


  1. “Navy enlisted manpower and personnel classifications”. Bureau of Naval Personnel. US Navy. Archived from the original on 2008-04-10. Retrieved 2007-01-11.


See also