[Code of Federal Regulations] [Title 20, Volume 1] [Revised as of April 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 20CFR228.12] [Page 471] TITLE 20--EMPLOYEES' BENEFITS CHAPTER II--RAILROAD RETIREMENT BOARD PART 228_COMPUTATION OF SURVIVOR ANNUITIES--Table of Contents Subpart B_The Tier I Annuity Component Sec. 228.12 Computation of the tier I annuity component of a child's insurance annuity. The tier I annuity component of a child's insurance annuity is 75 percent of the PIA computed under Sec. 228.10 of this part. The amount may be adjusted for the family maximum. See Sec. 228.14 of this part.