Expand All 4610A. Registration and Other Requirements 4611A. Registration as an ADF Market Maker or ADF ECN 4612A. Reserved 4613A. Character of Quotations 4614A. Reserved 4615A. Reserved 4616A. Reserved 4617A. Normal Business Hours 4618A. Clearance and Settlement 4619A. Withdrawal of Quotations 4620A. Voluntary Termination of Registration 4621A. Suspension and Termination of Quotations by NASD Action 4622A. Termination of NASD Alternative Display Facility Data System Service 4623A. Alternative Trading Systems 4624A. Reserved 4625A. Reserved 4630A. Reporting Transactions in ADF-Eligible Securities 4631A. Reserved 4632A. Transactions Reported by Members to TRACS Book traversal links for 4600A. TRADING IN ADF-ELIGIBLE SECURITIES ‹ 4400A. REVIEW OF DIRECT OR INDIRECT ACCESS COMPLAINTS Up 4610A. Registration and Other Requirements ›