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        <title>Equifax Inc. Quarterly report pursuant to Section 13 or 15(d)</title>
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            <h3>Quarterly report pursuant to Section 13 or 15(d)</h3>
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                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1054">CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY AND OTHER COMPREHENSIVE (LOSS) INCOME (Parenthetical)</a></li>
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                                <a class="menu-item " href="/sec-filings/all-sec-filings/xbrl_doc_only/1077">Notes Details</a>
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                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1077">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Weighted-Average Outstanding Shares used in Calculations of Basic and Diluted EPS (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1078">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1079">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Items Measured at Fair Value on Recurring Basis (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1080">REVENUE - Disaggregation of Revenue (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1081">REVENUE - Remaining Performance Obligation (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1082">LEASES - Effect of Adoption on Key Financial Statements (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1083">LEASES - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1084">LEASES - Other Information (Details)</a></li>
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                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1086">GOODWILL AND INTANGIBLE ASSETS - Schedule of Changes in Amount of Goodwill (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1087">GOODWILL AND INTANGIBLE ASSETS - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1088">GOODWILL AND INTANGIBLE ASSETS - Schedule of Purchased Intangible Assets (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1089">GOODWILL AND INTANGIBLE ASSETS - Schedule of Estimated Future Amortization Expense (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1090">DEBT - Schedule of Debt Outstanding (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1091">DEBT - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1092">COMMITMENTS AND CONTINGENCIES - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1093">INCOME TAXES (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1094">ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Changes in Accumulated Other Comprehensive Income (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1095">ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1096">BENEFIT PLANS (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1097">RESTRUCTURING CHARGES (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1098">SEGMENT INFORMATION - Narrative (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1099">SEGMENT INFORMATION - Operating Revenue and Operating Income by Operating Segment (Details)</a></li>
                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1100">SEGMENT INFORMATION - Total Assets by Operating Segments (Details)</a></li>
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                                <a class="menu-item " href="/sec-filings/all-sec-filings/xbrl_doc_only/1101">Uncategorized</a>
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                                                                            <li><a href="/sec-filings/all-sec-filings/xbrl_doc_only/1101">Uncategorized Items - efx-20190331.xml</a></li>
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                <h4>CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY AND OTHER COMPREHENSIVE (LOSS) INCOME (Parenthetical)</h4>
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