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CMS' RDS Center will perform system maintenance on the RDS Secure Website on Friday, September 18, 2026, beginning at 9:00 PM ET and concluding Saturday, September 19, 2026, at 10:00 AM ET. The SWS will be available during this time with the following limitations until after system maintenance concludes: Retiree Files uploaded during this time will not appear on the SWS; Weekly Notification Files and Retiree Response Files will not be available for download; and Covered Retiree Lists requested during this time will not be available to view or download. Thank you for your patience. 

Reminder: RDS To Begin Accepting MBI on April 1, 2018

CMS' RDS Center would like to remind the Plan Sponsor community that, in accordance with CMS’ New Medicare Card Project initiative, beginning April 1, 2018, the RDS Center shall begin accepting the Medicare Beneficiary Identifier (MBI) in retiree files.

Please review the RDS Program Website New Medicare Card Project Webpage for helpful guidance on this initiative and how it impacts the RDS Program, including the New Medicare Card Project Webinar Highlights and RDS New Medicare Card Project Webinar Slide Deck.

For more information, contact CMS' RDS Center.

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