TITLE 20--EMPLOYEES' BENEFITS CHAPTER II--RAILROAD RETIREMENT BOARD PART 229_SOCIAL SECURITY OVERALL MINIMUM GUARANTEE--Table of Contents Subpart F_Computation of the Overall Minimum Rate Sec. 229.54 Reduction for social security benefit paid to employee on another person's earnings record. The employee PIA amount under the overall minimum, after any age reduction, is reduced, but not below zero, by the amount of any social security benefit being paid to the employee on another person's earnings record.