UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: March 21, 2011 2:00 P.M.
Form: S-4
CIK: 0001513514
Company Name: TRANSUNION CORP.
File Number: 333-172549
CIK: 0001513515
Company Name: TransUnion Financing Corp
File Number: 333-172549-08
CIK: 0001513512
Company Name: Diversified Data Development Corp
File Number: 333-172549-07
CIK: 0001513516
Company Name: TransUnion Healthcare, LLC
File Number: 333-172549-06
CIK: 0001513513
Company Name: Trans Union LLC
File Number: 333-172549-05
CIK: 0001513517
Company Name: TransUnion Interactive, Inc.
File Number: 333-172549-04
CIK: 0001513520
Company Name: VISIONARY SYSTEMS, INC.
File Number: 333-172549-03
CIK: 0001513518
Company Name: TRANSUNION RENTAL SCREENING SOLUTIONS, INC.
File Number: 333-172549-02
CIK: 0001513519
Company Name: TransUnion Teledata, LLC
File Number: 333-172549-01