OVERVIEW NEW YORK (Standard&Poor's) April 20, 2015--Standard&Poor's Ratings Services said today it assigned its 'BBB' issue-level rating to AutoZone Inc.'s proposed tranches of senior unsecured notes. AutoZone plans to issue $400 million senior unsecured notes that mature in 2025 and $250 million senior unsecured notes that mature in 2021. The company plans to use the proceeds for general corporate purposes, which includes repaying existing debt, such as commercial paper, for working capital, and capital expenditures needs. The ratings on the Memphis-based AutoZone reflects the company's leading position in the retail auto parts market in the U.S. along with a strong position in the commercial auto parts distribution business. We expect the company to continue generating healthy