Attached files
| file | filename |
|---|---|
| 10-K/A - ANNUAL REPORT - COSTAR GROUP, INC. | form_10-k.htm |
| EX-31.2 - CFO CERTIFICATION - COSTAR GROUP, INC. | cfocert.htm |
| EX-23.1 - CONSENT OF E&Y - COSTAR GROUP, INC. | ey-consent.htm |
| EX-32.2 - CFO 906 CERTIFICATION - COSTAR GROUP, INC. | cfo-906_cert.htm |
| EX-32.1 - CEO 906 CERTIFICATION - COSTAR GROUP, INC. | ceo-906_cert.htm |
EXHIBIT
31.1
CERTIFICATION
I, Andrew
C. Florance, certify that:
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1.
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I
have reviewed this amendment no. 1 to the annual report on Form 10-K/A of
CoStar Group, Inc.;
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2.
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Based
on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this
report; and
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3.
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Based
on my knowledge, the financial statements, and other financial information
included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this
report.
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Date:
March 3, 2010
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By:
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/s/
Andrew C. Florance
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Andrew
C. Florance
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Chief
Executive Officer
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(Principal
Executive Officer and
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Duly
Authorized Officer)
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