August 31, 1967

Male Air Force Military Training Instructors (MTIs) start wearing the olive drab Army style “Smokey Bear” hats to readily identify themselves to others as drill sergeants. In 1974, the color will be changed to Air Force blue. Women MTIs will receive approval to wear their own distinctive style of Smokey Bear hats in 1976. The female instructor hats have the left brim turned upward.