Existing law, the Teachers' Retirement Law, establishes the State Teachers' Retirement System (STRS) and creates the Defined Benefit Program of the State Teachers' Retirement Plan, which provides a defined benefit to members of the program, based on final compensation, credited service, and age at retirement, subject to certain variations. STRS is administered by the Teachers' Retirement Board. Existing law creates the Teachers' Retirement Fund and establishes within that fund a segregated account named the Supplemental Benefit Maintenance Account. Existing law continuously appropriates funds in the Supplemental Benefit Maintenance Account for expenditure for the purpose of restoring the purchasing power of the allowances of retired members and nonmember spouses, disabled members, and beneficiaries, and prescribes various schedules pursuant to which these allowances are augmented. This bill would prescribe additional benefits to be paid quarterly from the Supplemental Benefit Maintenance Account, beginning July 1, 2023, to retired members and nonmember spouses, disabled members, and beneficiaries, to be made pursuant to a specified schedule. By providing for additional payments to be made from a continuously appropriated fund, this bill would make an appropriation. The bill would require the amount of these increases to be determined on July 1, 2023, as specified, and would require that amount to be increased each year commencing on July 1, 2024, but not compounded. The bill would specify that these increases are not part of the base allowance, are payable only to the extent that funds are available from the Supplemental Benefit Maintenance Account, and would state the extent to which these payments would be vested. The bill would make additional conforming and nonsubstantive changes.