AIR FORCE INSTRUCTION 36-2903 Dress and Personal Appearance of Air Force Personnelu201d replaced Air Force Regulations 35u201310 in the 1994u20131995 timeframe as the USAF reorganized itu2019s regulations numbering system and intent of their requirements from a u201cthou willu2026u201d to more of a u201cyou shouldu2026u201d guidance philosophy.For some light reading, you can find it here: http://www.afpc.af.mil/Portals/7...