[Code of Federal Regulations] [Title 20, Volume 1] [Revised as of April 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 20CFR225.43] [Page 452] TITLE 20--EMPLOYEES' BENEFITS CHAPTER II--RAILROAD RETIREMENT BOARD PART 225_PRIMARY INSURANCE AMOUNT DETERMINATIONS--Table of Contents Subpart E_Cost-of-Living Increases Sec. 225.43 PIA's subject to cost-of-living increases. The Retirement Tier I, Overall Minimum, Survivor Tier I, Employee RIB and RLS PIA's are adjusted for cost-of-living increases. The remaining PIA's described in subparts B and C of this part are frozen at the amounts determined under the Social Security Act as in effect on December 31, 1974.