Wachovia Bank N.A. municipal exempt receipts liquidity optional tender series 2006B13, relating to Pennsylvania Housing Finance Agency single-family mortgage revenue bonds series 2006-92A, are rated 'AA+/A-1+'. The long-term component of the rating is based on the 'AAA' rated, underlying bond. The short-term component of the rating is based on the liquidity facility provided by Wachovia Bank N.A. until Aug. 2, 2007.