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Navy NEC · Combat & Infantry

775B Expeditionary: Maritime Security

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

An Expeditionary Maritime Security specialist executes major combat operations, counter-insurgency security, port security, and harbor defense. The specialist also conducts humanitarian assistance, disaster response, theater security cooperation, law enforcement, maritime interdiction, and security, stability, transition, and reconstruction operations.

Core Skills

  • Port security and harbor defense
  • Maritime interdiction operations
  • Humanitarian assistance and disaster response

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Police and Sheriff's Patrol Officers

Military law enforcement operations, port security, and maritime interdiction provide relevant experience for civilian patrol and public-safety work.

How to prepare: Ask a target agency to review your education, military training, and law enforcement experience for entry eligibility and any applicable military-credit route before enrolling in additional training. Most officers must complete an agency academy followed by on-the-job training; applicants need at least a high school diploma or equivalent, some agencies require college coursework or a degree, and candidates usually must be at least 21 and meet rigorous physical and personal qualifications.

What the civilian work involves
  • Provide for public safety by maintaining order, responding to emergencies, protecting people and property, enforcing motor vehicle and criminal laws, and promoting good community relations.
  • Investigate illegal or suspicious activities.

Notes & Sources

  • For police appointments, most state and local jurisdictions require U.S. citizenship, although some do not; federal officers must be U.S. citizens.
Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC 775B

    [1] NEC entry "775B - Expeditionary - Maritime Security"; cached text line 18532; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Port security and harbor defense, Maritime interdiction operations, Humanitarian assistance and disaster response, Police and Sheriff's Patrol Officers (O*NET 33-3051.00)

  2. O*NET: Police and Sheriff's Patrol Officers

    [2] O*NET 30.3 occupational data

    Supports: Police and Sheriff's Patrol Officers (O*NET 33-3051.00)

  3. Bureau of Labor Statistics: Police and Detectives

    [3] How to Become, Education, Training and Other Experience; checked September 24, 2026

    Supports: Police and Sheriff's Patrol Officers (O*NET 33-3051.00)

Defense contractor jobs for 775B

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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