Navy Officer designator · Support
121X Nuclear Power School-Instructor (RL)
Current service use not established
This code is listed in the directory. Inclusion alone does not confirm current service use.
A Navy officer classification, not an enlisted rating.
Overview
Nuclear Power School Instructors train future Nuclear Propulsion Officers and Nuclear Field Enlisted Personnel at the Naval Nuclear Power Training Command in Charleston, South Carolina. They teach mathematics, physics, electrical engineering, heat transfer and fluid flow, chemistry, radiological controls, and reactor plant engineering.
Notes & Sources
- NOOCS Part A (Edition 96, Jul 2026) defines officer designator 121X as: “Restricted Line Officer (Nuclear Power School Instructor) regulated by Program Authorization 100B.”
- The designator row is an identity/qualification statement, not a duty description, so occupation-specific skills, career paths, and credential recommendations are not published here; duties depend on the billet and community qualification.
Evidence for this guidance (1 document)
- NAVPERS 15839I Vol I Part A · Billet and Officer Designator Codes (NOOCS Edition 96, Jul 2026)
[1] Part A officer designator table, block 121X, cached text line 323
Supports: Specialty definition
Source review recorded September 24, 2026.
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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