Group health plan sponsors must provide a notice of creditable or non-creditable prescription drug coverage to Medicare Part D-eligible individuals covered by, or who apply for, prescription drug coverage under the health plan. This creditable coverage notice alerts individuals about whether their prescription drug coverage is at least as good as the Medicare Part D coverage. The notice generally must be provided at various times, including when an individual enrolls in the plan and each year before Oct. 15 (when the Medicare annual open enrollment period begins). Model notices are available on the Centers for Medicare and Medicaid Services’ website.