Standard&Poor's Ratings Services has assigned its 'AA' rating to Orlando Utility Commission (OUC, the utility, or the commission), Fla.'s $318.8 million utility system revenue bonds, series 2009A and B. Standard&Poor's also has affirmed its 'AA' long-term rating on parity debt obligations outstanding. The outlook is stable. At the same time, Standard&Poor's lowered the short-term rating on OUC's 2002B variable rate bonds, to 'A-1' from 'A-1+'. The downgrade reflects the Jan. 29, 2009, lowering of the short-term rating on the standby bond purchase facility provider, SunTrust Bank, to 'A-1' from 'A-1+'. In addition, Standard&Poor's affirmed its 'AA/A-1+' ratings on the commission's series 2002A and series 2008 variable rate bonds, which respectively benefit from