Shoulder Sleeve Insignia

All personnel, except chaplains, wear their subdued grade insignia centered on the front of the camouflage cover, approximately 2 1⁄2 inches up from the bottom rim. Subdued pin-on or embroidered sew-on grade insignia is authorized for wear on the camouflage cover. Commanders may not require enlisted soldiers to attach embroidered grade insignia, unless it is issued and attached without cost to the soldier (see fig 28–13). Chaplains wear their subdued branch insignia, in lieu of grade insignia. Wear of nametapes or the use of other means to apply names to helmet bands is determined by the commander and is provided to soldiers at no cost.
AR 670-1 Chapter 28-3 Page 181

AR 670-1 chapter 28-17 Page 239-240
28–17. Shoulder sleeve insignia-former
(4) The Dominican Republic: 29 April 1965 to 21 September 1966, both dates inclusive. Individuals are authorized to wear one of three organizational SSI: XVIII Airborne Corps, 82d Airborne Division, or 5th Logistical Command. Individuals previously attached, assigned, or under the operational control of these units will wear their respective insignia. A fourth organizational SSI (OEA-Spanish equivalent of Organization of American States) is authorized for individuals who were not in one of the three units listed above.
(5) Grenada, to include the Green and Carriacou Islands: between 24 October 1983 and 21 November 1983, both dates inclusive. Personnel are authorized to wear one of the following organizational SSI: XVIII Airborne Corps; 82d Airborne Division; 1st Special Operations Command (ABN); 1st Corps Support Command; 20th Engineer Brigade; 35th Signal Brigade; 16th Military Police Brigade; 44th Medical Brigade; 1st Battalion (Ranger), 75th Ranger Regiment; 2d Battalion (Ranger), 75th Ranger Regiment; and 101st Airborne Division (AASLT). Individuals attached to, or under the operational control of these units will wear their respective organizational SSI. Individuals attached to, or under the operational control of any unit whose parent organization is not authorized SSI, will wear the SSI of the unit to which attached or the unit that had operational
(8) Persian Gulf: from 27 July 1987 to 1 August 1990 for soldiers assigned or attached to, or under the operational control of a unit whose mission was direct support to Operation Earnest Will. Soldiers must have been eligible for the Armed Forces Expeditionary Medal and imminent danger pay.
(9) Panama: from 20 December 1989 to 31 January 1990 for soldiers assigned to the following units, and who participated in Operation Just Cause: XVIII Airborne Corps; U.S. Army Special Operations Command; U.S. Army South; 7th Infantry Division (Light); 82d Airborne Division; 5th Infantry Division (M); 1st Special Operations Command; 193d Infantry Brigade; 1st Corps Support Command; 16th Military Police Brigade; 18th Aviation Brigade; 35th Signal Brigade; 7th Special Forces Group; 75th Ranger Regiment; 1st , 2d, and 3d Battalions, 75th Ranger Regiment; 470th Military Intelligence Brigade; 525th Military Intelligence Brigade; 44th Medical Brigade; 1109th Signal Brigade; Military Surface Deployment and Distribution Command; and CIDC. Soldiers assigned to units not listed above will wear the shoulder sleeve insignia of the unit to which attached, or the unit that had operational control. Soldiers assigned to units not listed above and not attached to, or under the operational control of any of the units listed above, will wear the