mos.directory

Navy NEC · Logistics

800I LCAC-100 Deck Engineer

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.

Browse Navy

Overview

An LCAC 100 Deck Engineer operates LCAC 100 Class vehicles during amphibious assault and training operations to and from LHAs, LHDs, LPDs, and LSDs and across surf and beach interfaces. This engineer applies amphibious assault tactics, navigation, rules of the road, and radio and visual communication procedures while supervising the LCAC crew.

Core Skills

  • Ship-to-shore craft operation through surf
  • International and inland navigation rule application
  • Maritime radio and visual communications
  • Crew supervision across amphibious craft operations

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.

Captains, Mates, and Pilots of Water Vessels

LCAC operation, navigation-rule application, maritime communications, and crew supervision transfer directly to civilian vessel navigation and deck leadership.

How to prepare: Before buying training, compare existing qualifications with the MMC and deck-officer endorsement needed for your intended vessel, route, and role, and request USCG evaluation of military sea service using an official service transcript or assignment history with vessel and duty details. Use that evaluation to identify remaining sea time, approved training, medical examination, and professional testing requirements; these roles typically require several years of sea time, and most require a TWIC.

What the civilian work involves
  • Prevent ships under navigational control from engaging in unsafe operations.
  • Consult maps, charts, weather reports, or navigation equipment to determine and direct ship movements.
  • Steer and operate vessels, using radios, depth finders, radars, lights, buoys, or lighthouses.

Notes & Sources

  • A DD-214 is not acceptable evidence of sea service; USCG determines the merchant-service equivalence and endorsement scope of documented military service.
  • Officer endorsement eligibility also includes age, citizenship, character, and drug-testing requirements.
  • Open-ocean service requires USCG-verified STCW training; an STCW endorsement generally requires the appropriate national endorsement. Maritime pilot work may also require a state license.
Evidence for this guidance (5 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC 800I

    [1] NEC entry "800I - LCAC-100 Deck Engineer"; cached text line 20279; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Ship-to-shore craft operation through surf, International and inland navigation rule application, Maritime radio and visual communications, Crew supervision across amphibious craft operations, Captains, Mates, and Pilots of Water Vessels (O*NET 53-5021.00)

  2. O*NET: Captains, Mates, and Pilots of Water Vessels

    [2] O*NET 30.3 occupational data

    Supports: Captains, Mates, and Pilots of Water Vessels (O*NET 53-5021.00)

  3. Bureau of Labor Statistics: Water Transportation Workers

    [3] How to Become; training, licenses and related experience; updated August 27, 2026, checked September 23, 2026

    Supports: Captains, Mates, and Pilots of Water Vessels (O*NET 53-5021.00)

  4. USCG: 46 CFR 10.232 military sea-service evidence and credit

    [4] Paragraphs (a) and (d)(1), official eCFR snapshot September 21, 2026; retrieved September 24

    Supports: Captains, Mates, and Pilots of Water Vessels (O*NET 53-5021.00)

  5. USCG: 46 CFR 11.201 officer-endorsement requirements

    [5] Paragraph (a), official eCFR snapshot September 21, 2026; retrieved September 24

    Supports: Captains, Mates, and Pilots of Water Vessels (O*NET 53-5021.00)

Defense contractor jobs for 800I

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

Report an error on this page