EXHIBIT
32.1
18
U. S. C. SECTION 1350,
AS
ADOPTED PURSUANT TO
SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002
In
connection with the Annual Report of Equifax Inc. (the “Company”) on
Form 10-K for the period ended December 31, 2010, as filed with the
Securities and Exchange Commission on the date hereof (the “Report”), I, Richard
F. Smith, Chairman and Chief Executive Officer of the Company, certify, pursuant
to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that to my knowledge:
(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
Company.
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Date:
February 23, 2011
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/s/ Richard F.
Smith
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Richard
F. Smith
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Chairman
and Chief Executive Officer
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