As the U.S. Air Force phases in the Operational Camouflage Pattern uniform across its ranks, it is reminding airmen who've already started wearing the new battle dress uniform that they can wear their current subdued patches until new patches are manufactured in the approved, limited color schemes. In an announcement last month, the service said patches normally worn day-to-day are authorized until the new mandatory brown subdued patches are available. The service is moving to a four-color patch scheme, using spice brown, Bagby green, olive drab and black. Read more in about the rules for patches in this Military.com story.