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50.3 – Incomplete Enrollment Requests ..................................................................................87 50.4 – Denial of an Enrollment Request ..................................................................................88 50.5 – When the Enrollment Request is Complete ..................................................................89 50.6 – Enrollment not Legally Valid .......................................................................................90 50.7 – Other Qualified Prescription Drug Coverage Through an Employer or Union Retiree Drug Subsidy (RDS) Plan Sponsor ..............................................................................90 50.8 – Transmission of Enrollment to CMS ............................................................................91 50.9 – Information Provided to Enrollee .................................................................................93 50.9.1 – Prior to the Effective Date of Coverage ...............................................................93 50.9.2 – After the Effective Date of Coverage ..................................................................94 50.10 – Enrollment Processing During Closed Periods – Part C only .....................................95 50.10.1 – Procedures After Reaching Capacity Limit – Part C only .................................95 50.11 – Enrollment Procedures for Medicare MSA Plans – Part C only ................................96 50.11.1 – Establishing the MSA Banking Account during the Enrollment Process..........97 60 – Disenrollment .........................................................................................................................98 60.1 – Voluntary Disenrollment ..............................................................................................98 60.1.1 – Voluntary Disenrollment Processing ...................................................................98 60.1.2 – Incomplete Disenrollment Requests ..................................................................100 60.1.3 – Denial of a Voluntary Disenrollment Request ...................................................100 60.1.4 –Disenrollments not Legally Valid .......................................................................100 60.1.5 – Optional Mechanism for Employer/Union Disenrollments ...............................101 60.1.6 – Group Disenrollment for Employer/Union Sponsored MA and Part D plans ...101 60.1.7 – Disenrollment Process for Employer/Union Sponsored Coverage Terminations ..............................................................................................................................102 60.1.8 – Medigap Guaranteed Issue Notification Requirements for Disenrollments to Original Medicare during an SEP – Part C only ..................................................104 60.2 – Required Involuntary Disenrollment ..........................................................................104 60.2.1 – General Rule for Enrollees Who Change Permanent Address ..........................106 60.2.1.1 – Incarcerated Individuals ............................................................................107 60.2.1.2 – Required Involuntary Disenrollments Based on Extended Absence ........108 60.2.1.3 – Researching and Acting on a Change of Address .....................................109 60.2.1.4 – Special Procedures for Auto- and Facilitated Enrollees Whose Address is Outside the PDP Region ................................................................................110 60.2.1.5 – Procedures for Developing Addresses for Enrollees Whose Mail is Returned as Undeliverable .............................................................................111 60.2.2 – Loss of Medicare Part A, Part B, or Eligibility for Part D .................................112 60.2.3 – Death of the Enrollee .........................................................................................112 60.2.4 – Loss of Special Needs Status .............................................................................113 60.2.5 – Failure to Pay a Part D-Income Related Monthly Adjustment Amount (Part D- IRMAA) ...............................................................................................................114 60.2.6 – Unlawful Presence Status ..................................................................................115 60.2.7 – Terminations/Non-renewals/Service Area Reduction .......................................116 60.2.8 – Material Misrepresentation Regarding Third-Party Reimbursement – Part D only ..............................................................................................................................116 60.3 – Optional Involuntary Disenrollments .........................................................................117 60.3.1 – Failure to Pay Premiums ....................................................................................117