Latest OCP guidance approves current subdued patches Published Dec. 27, 2018 By Senior Master Sgt. Andrew Biscoe 439th Airlift Wing WESTOVER AIR RESERVE BASE, Mass. (AFNS) -- Airmen wearing OCP uniforms are authorized to add their former Airmen Battle Uniform subdued patches until the mandatory brown subdued ones go into effect. Also, according to Air Force Instruction 36-2903, the U.S. flag patch is mandatory and will be subdued using the spice brown color criteria, centered at the top of velcro and worn while in–garrison and deployed. Current subdued black and green U.S. flags may be worn until June 1, 2020, then spice brown will be the only accepted version. Infra-red U.S. flags are not authorized. The higher headquarters patch is mandatory and will be subdued using the spice brown color criteria and centered under the U.S. flag patch. The current subdued version of the higher headquarters patch may be worn until the patch color conversion has been completed or until April 1, 2021, whichever is sooner. A maximum of two patches may be worn.