(1) General Limitation. Except as otherwise provided in this section, the annual retirement benefit payable to any member shall not exceed $90,000 or such other limit as may be the maximum permissible pursuant to Section 415(d) of the Tax Code.

(2) Adjustment of Limitations.

(a) To the extent the limitations set forth herein may be from time to time adjusted by statutes, regulations or other publications issued by the Internal Revenue Service or successor agency or department, such adjusted amounts shall be substituted for the amounts set forth in this section, provided that no such adjustment shall reduce a member's accrued benefit unless such adjustment is required to preserve the qualified status of the Retirement System. To the extent that the limitations under this section become unnecessary by amendment of law, the limitations shall be deemed inoperative under this Title.

(b) If a benefit is to be distributed in a form other than a single or straight life annuity or joint and survivor annuity (including any death benefit payable as a survivor's annuity), the actuarial equivalent (using an interest rate, however, not less than the greater of five percent (5%) or the valuation rate adopted by the Board upon recommendation by the Board's actuary) of a single life annuity of such benefit must satisfy the limitations set forth in this section. Further adjustments may be made by the Board, as permitted by Section 415 of the Tax Code and the regulations promulgated thereunder, under the appropriate circumstances including, if authorized by ordinance of Council, receipt by the Retirement System of rollover contributions or assets or liabilities transferred from another qualified plan. If the Retirement System receives contributions from members, such contributions shall be considered as having been contributed to a separate defined contribution plan for purposes of the limitations set forth in this section.

(c) In the event that a member's benefit is to be distributed prior to the member's Social Security Retirement Age but on or after the attainment of age 62, the currently effective dollar amount in subsection (1)(a) of this section shall be actuarially reduced, in accordance with regulations issued by the Internal Revenue Service, in a manner consistent with the reduction for old-age insurance benefits commencing before the member's Social Security Retirement Age. In the event that a member's benefit is to be distributed prior to age 62, the currently effective dollar amount in subsection (1)(a) of this section shall be actuarially reduced to the actuarial equivalent (using an interest rate, however not less than the greater of five percent (5%) or the valuation rate adopted by the Board upon recommendation of the Board's actuary) of an annual benefit equal to the dollar amount commencing at age 62, as determined under the preceding sentence.

(d) In the event that a member's benefit is to be distributed after the member's Social Security Retirement Age, the currently effective dollar amount in subsection (1)(a) of this section shall be actuarially increased to the actuarial equivalent (using an interest rate, however, not greater than the lesser of five percent (5%) or the valuation rate adopted by the Board upon recommendation by the Board's actuary) of an annual benefit equal to such dollar amount commencing at the member's Social Security Retirement Age.

(e) With regard to any Police Employee or Fire Employee, subsection (3) above shall not serve to reduce the limitation set forth in subsection (1)(a) below $50,000 (or such other limit as may be the maximum permissible amount pursuant to Section 415(d) of the Tax Code).

(f) Any purchase of service on or after August 5, 1997 must satisfy one of the following requirements: (1) the purchase of additional credited service cannot cause the annual retirement benefit payable to the member to exceed the limitation set forth in Section 22-305(1); or (2) the total contribution made in any plan year for the purchase of service, when combined with other amounts contributed by or on behalf of the member, cannot exceed $30,000 or any other limitation set forth in Section 415(c)(1)(A) of the Tax Code.