CHICAGO (Standard&Poor's) June 26, 2008--Standard&Poor's Ratings Services said today it lowered the corporate credit rating on Memphis, Tenn.-based AutoZone Inc. to 'BBB' from 'BBB+', following the company's announcement that it will expand its share repurchase program and increase leverage to at least 2.5x (adjusted debt/EBITDAR calculated by AutoZone using 6x annual rents). This action reflects the company's more aggressive financial policy. At the same time, we are affirming the company's 'A-2' short-term and commercial paper (CP) ratings. The outlook is stable.