CMS has published a proposed rule that would allow Medicare Part D prescription drug plan (PDP) sponsors to offer a reduced drug plan premium amount for low-income subsidy (LIS) individuals, subject to certain conditions. The proposal would apply in regions where there otherwise would be fewer than five PDP sponsors with a “zero-premium” plan option for LIS beneficiaries. Through this rule, CMS seeks to ensure a sufficient number of PDP sponsors offering zero-premium plans in each region and reduce the number of LIS beneficiary reassignments to other PDPs. CMS is accepting comments on the proposal through March 10.