NY -- Standard&Poor's CreditWire 5/18/98 -- Standard&Poor's today assigned its single-'A'-plus corporate credit rating to DPL Inc., the parent holding company of Dayton Power&Light Co. (Dayton; AA-/Stable/A-1+). At the same time, Standard&Poor's assigned its single-'A'-plus debt rating to DPL's $100 million series A senior notes, issued under Rule 144A. Additionally, Standard&Poor's assigned its single-'A'-plus bank loan rating to DPL's $200 million unsecured three-year revolving/two-year term loan facility. DPL's ratings mainly reflect the creditworthiness of Dayton, its primary cash generating subsidiary. Future common dividend payments by Dayton will be the primary means of DPL's ability to service its own debt. Dayton has a favorable business position and a strong financial profile.