DA PAM 670-1: 23-10. United States civilians
Quick Answer
U.S. civilians authorized to wear utility uniforms use a subdued black equilateral triangle insignia (1-1/4 inches per side) with "U.S." letters on a camouflage background, worn like rank insignia. Authorized designations include scientific consultant, war correspondent, technical observer, ordnance technician, logistics specialist, and expeditionary workforce. Expeditionary Civilian Workforce personnel wear a modified civilian SSI on the right sleeve.
Important
Unit and command policies may be more restrictive than AR 670-1. Always verify with your chain of command for local policies.
Official Source
View DA PAM 670-1, Section 23-10 (Page 354)Full Details
23-10. United States civilians
a. Insignia identifying designation.
(1) The utility uniform subdued insignia is a black equilateral triangle, 1-1/4 inches long per side, with the letters "U.S." embroidered, 1/4 inch wide and 1/2 inch high. The triangle is printed on a camouflage pattern colored cloth background, 3 inches long and 2-1/2 inches wide. If applicable, the insignia also indicates the designated assignment in black letters, 1/4 inch high.
(2) The authorized designations are as follows:
(a) Scientific consultant.
(b) Operations analyst.
(c) War correspondent.
(d) Technical observer.
(e) Ordnance technician.
(f) Chauffeur.
(g) Messenger.
(h) Logistics specialist.
(i) Safety.
(j) Ammunition surveillance.
(k) Expeditionary workforce.
(3) Insignia for civilians performing duties not listed in paragraph 23-10a(2) or when specific designations are not required will conform to previously described insignia, except the insignia will not denote duty assignment (see fig 23-2).
(4) Personnel will wear the insignia as follows:
(a) On the ACU and ECWCS jackets, the insignia is worn in the same manner as rank for U.S. Army personnel.
(b) On other uniforms, the insignia is worn centered directly above the left pocket or on the left sleeve on the utility uniform and in a similar location on outer garments.
(c) Personnel will center the insignia on the front of the patrol cap or headgear.
b. Nametape or nameplate. Personnel will wear a standard-size nametape or nameplate in the same manner as for U.S. Army personnel (see paras 21-25b and 21-25c).
c. Expeditionary Civilian Workforce. To distinguish our volunteer expeditionary workforce civilians, the civilian SSI has been modified with the words "Expeditionary Workforce" embedded with the symbol (see fig 23-3). The SSI will be worn on the wearer's right sleeve of the ACU.
Related Figures


Figure 23-3: Expeditionary Civilian Workforce shoulder sleeve insignia
DA PAM 670-1, Page 355
Figure 23-3 from DA PAM 670-1
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Disclaimer: This information is provided for educational purposes only. AR670.com is not an official U.S. Army resource. Always verify guidance with official publications and your chain of command.