S&P Global Ratings confirmed its 'AA/A-1' rating on Michigan State Housing Development Authority's series 2008C and 2008D rental-housing revenue bonds following the review of an upcoming substitution of the current standby-bond-purchase agreement (SBPA) with a substitute SBPA provided by PNC Bank N.A. We will likely affirm the rating to reflect the then current rating of PNC Bank N.A. on the effective substitution date of July 25, 2019.