NEW YORK (Standard&Poor's) Nov. 20, 2013--Standard&Poor's Ratings Services said today that it has reviewed its ratings on Norfolk Southern Corp., which it labeled as "under criteria observation," after publishing its revised corporate criteria on Nov. 19, 2013. Standard&Poor's expedited the review of its ratings on Norfolk Southern Corp. because the company recently issued debt (see "How Standard&Poor's Plans To Finalize--And Apply--Its Corporate Ratings Criteria," published Nov. 13, 2013). With our criteria review of Norfolk Southern Corp. complete, we have confirmed that our ratings on this issuer are unaffected by the criteria changes.