EXHIBIT 32

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of ITC Holdings Corp. (the “Registrant”) on Form 10-Q for the quarterly period ended March 31, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Joseph L. Welch, President and Chief Executive Officer of the Registrant, and Rejji P. Hayes, Senior Vice President, Chief Financial Officer and Treasurer of the Registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Dated: April 30, 2015

/s/ Joseph L. Welch

Joseph L. Welch

President and Chief Executive Officer

/s/ Rejji P. Hayes

Rejji P. Hayes

Senior Vice President, Chief Financial Officer and Treasurer