CERTIFICATE OF VICE PRESIDENT

T. ROWE PRICE INDEX TRUST, INC.

Pursuant to Rule 306 of Regulation S-T

I, the undersigned, David Oestreicher, Vice President of T. Rowe Price Index Trust, Inc. (the “Fund”), do hereby certify that the prospectuses for the Fund have been translated into the Spanish language. The Spanish versions of the prospectuses constitute a full and complete representation of the English versions which have been filed as a part of this Registration Statement. A copy of the Spanish versions will be available for inspection upon request.

WITNESS my hand and the seal of the Fund this April 29, 2015.

T. Rowe Price Index Trust, Inc.

/s/David Oestreicher(Seal)
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David Oestreicher, Vice President