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Marine Corps (USMC) Enlisted Job Descriptions
MOS 2643, Cryptologic Linguist
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Summary. This MOS is a skill designator MOS which requires formal training. Cryptologic linguist duties encompass the monitoring, collection, transcription, and translation of intercepted target communications. Following basic qualification as a linguist, Marines attend a specialized course of instruction and upon completion are assigned the appropriate MOS. Additional linguistic duties include installation and operation of receiving, recording, and associated power equipment; cryptologic linguist search for, monitor, record, translate, and report designated foreign voice transmissions. Linguists also maintain records concerning operational and technical characteristics of targeted communications. Finally linguistic analysts develop and maintain working aids as required and supervise or assist in the installation and operation of applicable signals collection and analysis facilities. This MOS is assigned only as a skill designator MOS to identify those Marines trained in designated low density foreign languages.

Requirements/Prerequisites

(1) Must possess a GT score of 100 or higher.

(2) Possess required Defense Language Aptitude Battery score.

(3) Complete the required courses of instruction from the Defense Language Institute and Voice Process Specialist Course or demonstrate an equivalent capability (as required).

(4) Must possess a top secret security clearance based on a Single Scope Background Investigation (SSBI).

(5) Corporal must hold primary MOSs 2621, 2631, 2651, or 267X, Grade may be waived.

(6) No speech or hearing defects.

(7) U.S. citizen.

(8) This MOS will be assigned and voided only by authority of the CMC (MM).

Duties. For a complete listing of duties and tasks, refer to the current Training and Readiness Manual.

Related DOT Classification/DOT Code. Translator 137.267-018.

Related Military Skill. Cryptologic Linguist, 267X.

Information Derived From MCO P1200.7V Part I and Part II.

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