(

a) Notwithstanding any provision of this part, including, but not limited to, subdivision (

e) of

Section 22664, the annual allowance payable on the effective date of this

section to a retired member, an option beneficiary, or a surviving spouse receiving an allowance pursuant to either

Section or shall not be less than the amount identified in the following

schedule for the number of years of the member’s credited service under the Defined Benefit Program at the time of the member’s retirement, disability, or death, excluding service credited pursuant to Sections 22714, 22715, 22717, and 22826, after the application of all allowances and allowance increases authorized by this part, including those specified in Sections and 24415, as those sections read on December 31, 1999, and excluding annuities payable from the accumulated annuity deposit contributions or the accumulated tax-sheltered annuity contributions: 20 years of credited service $15,000 years of credited service $15,500 years of credited service $16,000 years of credited service $16,500 years of credited service $17,000 years of credited service $17,500 years of credited service $18,000 years of credited service $18,500 years of credited service $19,000 years of credited service $19,500 years or more of credited service $20,000 (

b) Notwithstanding subdivision (a), the amount identified in the

schedule in subdivision (

a) shall be reduced:

(1) By percent for a beneficiary receiving an allowance under Option or Option 7.

(2) By one-third for an option beneficiary receiving an allowance under Option after the death of the member or for a member receiving an allowance under Option after the death of the option beneficiary.

(3) By percent for an option beneficiary receiving an allowance under Option after the death of the member or for a member receiving an allowance under Option after the death of the option beneficiary.

(4) By a percentage equal to percent minus the percentage of the member’s modified allowance received by the option beneficiary for each option beneficiary receiving an allowance under Option 8.

(5) By percent for a surviving spouse receiving an allowance pursuant to subdivision (

a) of

Section 23805.

(6) By percent for a surviving spouse receiving an allowance pursuant to subdivision (

c) of

Section or

Section 23855. (

c) A member to whom a disability allowance is payable on January 1, 2000, who subsequently receives a service retirement allowance pursuant to

Section shall, upon the retirement for service, receive an increase in the service retirement allowance pursuant to this section. (

d) A member, beneficiary, or surviving spouse may receive an allowance pursuant to this

section only if the member was an active member at the time of the member’s retirement, or death and, for those members who retired for service, the member retired on or after age 55, unless the member’s allowance was not subject to a reduction due to retirement prior to an age specified in this part. (

e) A retired member, option beneficiary, or surviving spouse subject to this

section shall receive the annual minimum allowance pursuant to this

section unless the system receives in writing, on a form prescribed by the system, notification from the member, option beneficiary, or surviving spouse before May 1, 2000, of his or her election not to receive the increase provided under this section. (

f) Benefits payable under this

section shall be initially paid by the system on July 1, 2000.