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a. Authorization. DUI of a design approved by TIOH, are authorized and prescribed for wear on the service uniforms of personnel in the following echelons:
(1) ACOM: one design for each ACOM/ASCC/DRU.
(2) Field Armies: one design for each field Army.
(3) Regional support commands.
(4) Corps: one design for each corps.
(5) Division: one design for each division.
(6) Separate TOE brigades and brigade combat teams (not organic to divisions).
(7) Numbered group: one design for each TOE numbered group.
(8) Color-bearing regiments; training support battalions aligned to color-bearing regiments; and separate battalions,
fixed type: one design for each regiment and separate TOE battalion.
(9) Battalions, flexible: one design for each TOE battalion.
(10) Hospitals: one design for each TOE hospital.
(11) U.S. Army Service schools established by DA: one design for each Service school.
(12) U.S. Army Training and Doctrine Command training centers: one design for each training center.
(13) U.S. Army medical centers: one design for each center.
(14) U.S. Army medical department activities: one design for each activity.
(15) U.S. Army hospital centers: one design for each center.
(16) U.S. Army dental activities: one design for each activity.
(17) ARNG TASS: one design for all TASS activities.
(18) USAR schools: one design for all USAR schools.
(19) Field operating agencies: one design for each activity based on the following criteria:
(a) An identifiable command structure.
(b) A valid justification in terms of unit mission, enhancement of unit morale, and degree of unit permanency.
(20) Other organizations: one design for each organization, except U.S. Army garrison (active and reserve), meeting the following criteria:
(a) An identifiable command structure.
(b) A valid justification in terms of unit mission, enhancement of unit morale, and degree of unit permanency.
(c) At least 500 military personnel assigned to the organization.
(21) Other.
(a) Organizations not in the categories listed above, which have a DUI by virtue of previous HQDA authority, are permitted to retain that DUI if it was manufactured and worn by members of the subject organization. In each case, such insignia is authorized for wear only after TIOH has determined the propriety and granted approval of the insignia.
(b) Units not authorized their own DUI will wear the DUI of the command to which assigned. Those units not authorized their own DUI and not assigned to a higher echelon that is authorized a DUI may, with the approval of the Army commander concerned, wear the DUI of the Army area in which located. Personnel participating in the AGR and ROTC simultaneous membership programs will wear the DUI of the commands, units, and agencies to which attached.
(c) Personnel assigned to a Joint command, DOD, or Federal agency will wear the DUI designated for Joint or DOD agencies.
b. Approval. Units meeting the criteria established above will submit requests for authorization of DUI through command channels to DCS, G–1 for approval, with a copy of permanent orders activating the unit and a proposed DUI design. Requests will include three proposed mottoes, if the organization requests a motto with the design. DUI approval will be forwarded to TIOH for design development. TIOH is the approval authority for DUI design. Once the design has been approved and developed, no changes will be made to the insignia. The procurement of DUI not approved and developed by TIOH is prohibited. Units may only purchase approved DUIs by using appropriated or nonappropriated funds from TIOH-certified manufacturers.
c. Provisional units. The authorization of a DUI will not be granted for provisional units.
d. Authorized wearers. When the DUI is authorized, all personnel assigned to the organization wear the insignia, except general officers and the Sergeant Major of the Army.
Da Pam 670-1: Chapter 21-22
21–22. Distinctive unit insignia
a. Authorization. DUI of a design approved by The Institute on Heraldry, DA, are authorized and prescribed for wear on the service uniforms of personnel in the echelons outlined in AR 670–1.
b. By whom worn.
(1) When a DUI is authorized, all personnel assigned to the organization wear the insignia, except general officers and the SMA. General officers wear their RDI on the black pullover sweater. The SMA wears the SMA insignia in lieu of the DUI. Reserve or National Guard component units with WARTRACE alignments may wear the DUI of the active component unit to which they are aligned, in lieu of their peacetime DUI, provided major USAR Regional Support Command, state Adjutant Generals of the National Guard, and active component ACOM commanders agree on such wear.
(2) A complete set of the DUI consists of three pieces.
c. Where worn. The design of the DUI is metal, or metal and enamel, only. Enlisted personnel wear the insignia on the service uniform coat, the black pullover cardigan, and the beret.
d. How worn.
(1) Enlisted personnel wear the DUI on the service uniform coat, centered on the shoulder loops an equal distance from the outside shoulder seam to the outside edge of the button, with the base of the insignia toward the outside shoulder seam. Enlisted personnel are not authorized to wear the DUI on the dress uniform (worn with white shirt and necktie/neck tab). Officers wear the DUI centered on the shoulder loops of the green service uniform, an equal distance
from the inside edge of their grade insignia to the outside edge of the button, with the base of the insignia toward the outside shoulder seam (see fig 21–134).
(2) On the beret, enlisted personnel wear the DUI centered on the organizational flash. Soldiers assigned to units not authorized a DUI wear the RDI on the beret in the same manner as the DUI.
(3) Soldiers (except chaplains, general officers, and the SMA) wear the DUI centered above the nameplate on the black pullover cardigan, with the top edge of the insignia 1/4 inch below the top edge of the patch on the cardigan. Soldiers assigned to units not authorized the DUI wear the RDI on the black pullover cardigan in the same manner as the DUI (see fig 21–135). Chaplains wear their branch insignia, general officers wear the RDI, and the SMA wears the SMA insignia in the same manner. All Soldiers may adjust the placement of the DUI or RDI, up or down on the patch, to allow for large size DUI or RDI, or to adjust to body configuration.