CMS has updated its model creditable coverage notices to reflect changes in the Medicare Part D enrollment period. The final regulations issued in April 2011 modified the timeframe for notifying participants whether a group health plan's prescription drug coverage is considered "creditable" for purposes of Medicare Part D. The enrollment period was changed from November 15 through December 31 to October 15 through December 7. The revised model notices can be used immediately and are available on the CMS website at: