CMS on Friday (Nov. 20) proposed a user fee rate of 3 percent for state-based marketplaces that use the federal platform, the first time CMS has suggested a figure for how much issuers in states that “lease” federal technology should kick back for those services. The agency also specified which exchange functions, such as eligibility and enrollment and call center services, that states opting to lease the platform must cede to the federal government. A former CMS official said that...