American Electric Power System Retirement Savings Planhttps://pcaobus.org/form-ap-filings/10084/10084American Electric Power System Retirement Savings Plan100847/12/2017 8:21:57 PM2016802cd713-8f91-40b7-9533-ef97550ef14f34Deloitte & Touche LLP415American Electric Power System Retirement Savings Plan4904AEP; AEP.Z; AEP.PA; AEP.PB0003411328James Milton Halsey0003411328True