AR 670-1: 21-24. Insignia representing regimental affiliation
Quick Answer
Regimental affiliation insignia consists of either the RDI or DUI approved by TIOH. A Soldier's RDI affiliation is based on branch, corps, or special branch. Soldiers may alternatively wear the DUI of a unit in which they are currently serving or have previously served successfully, based on assignment history in their official personnel record.
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 AR 670-1, Section 21-24 (Page 55)Full Details
21-24. Insignia representing regimental affiliation
a. Authorization. Insignia used to represent regimental affiliation consists of either the RDI or DUI of a design
approved by TIOH. A Soldier’s regimental affiliation using an RDI is based on a Soldier’s branch/corps/special branch, as determined by PMOS or specialty. Soldiers may wear the RDI for their affiliated regiment or may wear the DUI for a unit in which they are serving or have previously served successfully, based on their assignment history as indicated in their official personnel record.
b. How worn. See 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.