[Code of Federal Regulations] [Title 20, Volume 2] [Revised as of April 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 20CFR418] [Page 1183] TITLE 20--EMPLOYEES' BENEFITS CHAPTER III--SOCIAL SECURITY ADMINISTRATION PART 418_MEDICARE SUBSIDIES--Table of Contents Subpart D_Medicare Part D Subsidies Sec. 418.3123 When is a change in your subsidy effective? (a) If we redetermine your subsidy as described in Sec. 418.3120(b)(1), any change in your subsidy will be effective the month following the month of your report. (b) If we redetermine your subsidy as described in Sec. 418.3120(b)(2), any change in your subsidy will be effective in January of the next year. (c) If you do not return the redetermination form described in Sec. 418.3120(b)(1), we will terminate your subsidy effective with the month following the expiration of the 90-day period described in Sec. 418.3120(b)(1). (d) If you do not return the redetermination forms described in Sec. 418.3120(b)(2), we will terminate your subsidy effective in January of the next year.