S&P Global Ratings assigned its 'A-' rating to Cook County School District No. 88 (Bellwood), Ill.'s series 2017 taxable general obligation (GO) limited-tax school bonds. The outlook is stable. The district will use bond proceeds to restructure and refund prior debt for savings and to generate $7 million for working cash reserves. The bonds are secured by the district's debt service extension base (DSEB), which is unlimited as to rate but limited as to amount. Projected debt service for all of the district's limited-tax debt is below the current DSEB amount. The rating reflects our opinion of the district's: Participation in the Chicago's metropolitan statistical area (MSA)'s broad and diverse economy; Adequate, but below-average, income level with adequate market value