This legislation aims to achieve parity in cost-of-living adjustments (COLAs) for federal retirees by amending the Federal Employees Retirement System (FERS) to match the adjustments provided under the Civil Service Retirement System (CSRS). Currently, FERS annuities often receive a reduced COLA compared to CSRS annuities, particularly during periods of higher inflation. The bill specifically amends section 8462(b)(1) of title 5, United States Code, to mandate that FERS annuities be increased by the full percentage change in the price index , thereby eliminating the current formula that can lead to smaller adjustments. This ensures that FERS retirees receive a COLA that fully reflects inflation, aligning their benefits with those of CSRS retirees. These changes will apply to all future cost-of-living adjustments and to all FERS annuities, regardless of their commencement date.