32 CFR 542.3 - Definitions.
The following terms apply to the JROTC and NDCC programs:
(a) Junior Reserve Officers' Training Corps (JROTC). The organization of units established by the Department of the Army (under 10 U.S.C 2031) at public and private secondary schools to conduct student leadership training. Also, a general term used:
(1) To describe all JROTC training conducted at secondary schools.
(2) To denote the members, instruction, and other related matters.
(b) National Defense Cadet Corps (NDCC). Students taking part in leadership studies at any school under 10 U.S.C. 4651 and as prescribed by the Secretary of the Army. Used in a broad sense to refer to the program and related matters.
(c) Leadership Development (LD) Program. The JROTC curriculum which consists of a 4- or 3-year program of instuction (LD-1, -2, -3, and -4).
(d) Military Science (MS). The Senior ROTC curriculum which consists of two courses - the basic course (MS-I and MS-II) and the advanced course (MS-III and MS-IV).
(e) Region commander. The commanding general of a US Army ROTC Region who is responsible for the operation, training, and administration of the ROTC program within his/her geographical area. Region commanders are located at:
(1) US Army First ROTC Region, Fort Bragg, NC 28307.
(2) US Army Second ROTC Region, Fort Knox, KY 40121.
(3) US Army Third ROTC Region, Fort Riley, KS 66442.
(4) US Army Fourth ROTC Region, Fort Lewis, WA 98433.
(5) The Commander-in-Chief, US Army Europe and Seventh Army, APO New York 09102.