Standard&Poor's Ratings Services raised its standard long-term rating and Standard&Poor's underlying rating (SPUR) on Huntsville, Ala.'s GO debt outstanding one notch to 'AA+' from 'AA' based on the continued strong expansion and diversification of the city's economic base, coupled with conservative fiscal management that has produced, and is expected to continue to produce, strong financial operations and a strong capacity to repay debt. The outlook remains stable. Concurrently, Standard&Poor's raised its SPUR on the city's appropriation debt outstanding, issued by Huntsville Public Building Authority for the municipal justice and public safety center, one notch to 'AA' from 'AA-' based on the city's improved creditworthiness. The outlook is stable. Simultaneously, Standard&Poor's assigned its