Exhibit Designation Nature of Exhibit Previously Filed as Exhibit to: 4(c)(1) Note Purchase Agreement, dated as of October 18, 2012 between AEP Transmission Company, LLC and the Initial Purchasers. Registration Statement No. 333-217143, Ex 4(c)-1 4(c)(2) Supplement to Note Purchase Agreement, dated as of November 7, 2013 between AEP Transmission Company, LLC and the Initial Purchasers. Registration Statement No. 333-217143, Ex 4(c)-2 4(c)(3) Supplement to Note Purchase Agreement, dated as of November 14, 2014 between AEP Transmission Company, LLC and the Initial Purchasers. Registration Statement No. 333-217143, Ex 4(c)-3 *13 Copy of those portions of the AEPTCo 2019 Annual Report (for the fiscal year ended December 31, 2019) which are incorporated by reference in this filing. *23  Consent of PricewaterhouseCoopers LLP. *24 Power of Attorney. *31(a) Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. *31(b) Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. *32(a) Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code. *32(b) Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code. 101.INS XBRL Instance Document. The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document. 101.SCH  XBRL Taxonomy Extension Schema. 101.CAL  XBRL Taxonomy Extension Calculation Linkbase. 101.DEF  XBRL Taxonomy Extension Definition Linkbase. 101.LAB  XBRL Taxonomy Extension Label Linkbase. 101.PRE  XBRL Taxonomy Extension Presentation Linkbase. 104 Cover Page Interactive Data File. Formatted as inline XBRL and contained in Exhibit 101. APCo‡ File No. 1-3457 3(a) Composite of the Restated Articles of Incorporation of APCo, amended as of March 7, 1997. 1996 Form 10-K, Ex 3(d) 3(b) Composite By-Laws of APCo, amended as of February 26, 2008. 2007 Form 10-K, Ex 3(b) E-5