Standard&Poor's Ratings Services affirmed its 'AA+/A-1+' rating on Minnesota Housing Finance Agency's (MHFA) 2006 series C, 2007 series E (taxable), 2007 series J (taxable), 2007 series S, and 2007 series T (taxable) residential housing finance bonds due to the substitution of the existing standby bond purchase agreements (SBPAs) of State Street Bank&Trust Co. (AA-/A-1+) with a SBPA provided by the Wells Fargo Bank N.A. (AA-/A-1+) effective March 13, 2013. The 'A-1+' short-term rating on the bonds reflects the rating on Wells Fargo Bank. The 'AA+' rating on the bonds is based on the unenhanced rating of the resolution. The SBPAs provides coverage for the aggregate principal and interest in an amount equal to 189 days at