Navy NEC · Engineering

N31Z Nuclear Qualified Reactor Department Master Chief (RDMC)

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.

Overview

A nuclear qualified Reactor Department master chief advises the command on the administration and supervision of a nuclear propulsion plant. This senior enlisted advisor assists the Reactor Officer with enlisted personnel, watch assignments, operator qualification programs, and liaison duties for the Reactor Department at the chief petty officer level.

Core Skills

  • Nuclear operator qualification program monitoring
  • Reactor department enlisted watch assignments
  • Nuclear propulsion plant administration advising

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.

Nuclear Power Reactor Operators

Advising on nuclear propulsion plant supervision, assigning enlisted watches, and monitoring operator qualifications provide relevant experience for civilian reactor operations.

How to prepare: Ask a commercial nuclear facility's operator-training team to review your qualification and experience records for its reactor operator or senior reactor operator training pathway. NRC licensure requires meeting the facility's education and experience criteria and facility certification of required training and experience; the license is valid only for that facility.

What the civilian work involves
  • Operate nuclear power reactors in accordance with policies and procedures to protect workers from radiation and to ensure environmental safety.
  • Monitor all systems for normal running conditions, performing activities such as checking gauges to assess output or the effects of generator loading on other equipment.

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC N31Z

    [1] NEC entry "N31Z - Nuclear Qualified Reactor Department Master Chief (RDMC)"; cached text line 8811; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Nuclear operator qualification program monitoring, Reactor department enlisted watch assignments, Nuclear propulsion plant administration advising, Nuclear Power Reactor Operators (O*NET 51-8011.00)

  2. O*NET: Nuclear Power Reactor Operators

    [2] O*NET 30.3 occupational data

    Supports: Nuclear Power Reactor Operators (O*NET 51-8011.00)

  3. U.S. Nuclear Regulatory Commission: Licensing Process for Operators

    [3] Process for New Operator Licenses; page last reviewed/updated September 15, 2026

    Supports: Nuclear Power Reactor Operators (O*NET 51-8011.00)

Defense contractor jobs for N31Z

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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