Tech. Sgt. David Lawson, 48th Aircraft Maintenance Squadron, 56th Aircraft Maintenance Unit lead expediter, receives a certificate of rank from Col. Jay Silveria, 48th Fighter Wing commander, after being promoted to master sergeant under the Stripes for Exceptional Performers program Aug. 18, 2009, at RAF Lakenheath, England. STEP promotions are earned by outstanding Airmen who set themselves apart with superior working skills and leadership. (U.S. Air Force photo/Airman 1st Class Eboni Knox)