Standard&Poor's Ratings Services has raised its rating on Charleston County Airport District, S.C.'s 2013A and 2013B airport revenue bonds to 'A+' from 'A'. The outlook is stable. The upgrade reflects our assessment of a small-hub airport that has demonstrated strong enplanement growth and maintained consistently strong financial metrics, specifically debt service coverage and liquidity. We consider specific credit strengths to include: Strong historical enplanement trends that we expect to remain at least stable Debt service coverage levels that will be lower but at levels we still consider at least good on a pro forma basis A historically strong liquidity position, at no less than 508 days' cash on hand since 2010, levels we expect to continue No additional
