The first attempts in corrosion preventative maintenance in vehicle bodies came about in the early Sixties. Air Force TO 36-1-5, Army TM 38-600, Post Office V-5-65 and NAV DOCKS P-300 were quite general in their descriptions and defined areas on the vehicle to be rustproofed. The material applied and geographical areas requiring rustproofing were general as well. The first materials used were proprietary in some cases; specifications in others. Currently, MIL-STD-1223M is used to specify rustproofing at the time of procurement rather than after the vehicle has arrived at the point of use.