88 STAT. ]
PUBLIC LAW 93-406-SEPT. 2, 1974
ing the requirements of paragraph (2) if the nonforfeitable percentage of the accrued benefit derived from employer contributions (determined as of the later of the date such amendment is adopted, or the date such amendment becomes effective) of any employee who is a participant in the plan is less than such nonforfeitable percentage computed under the plan without regard to such amendment. " (B) ELECTION or FORMER SCHEDULE.—A plan amendment changing any vesting schedule under the plan shall be treated as not satisfying the requirements of paragraph (2) unless each participant having not less than 5 years of service is permitted to elect, within a reasonable period after the adoption of such amendment, to have his nonforfeitable percentage computed under the plan without regard to such amendment. "(b)
ACCRUED BENEFIT REQUIREMENTS.— (1) GENERAL RULES.— " (A) 3-PERCENT METHOD.—A defined
benefit plan satisfies the requirements of this paragraph if the accrued benefit to which each participant is entitled upon his separation from the service is not less than— " (i) 3 percent of the normal retirement benefit to which he would be entitled if he commenced participation at the earliest possible entry age under the plan and served continuously until the earlier of age 65 or the normal retirement age specified under the plan, multiplied by.. "(ii) thenumber of years (not in excess of 3314) of his participation in the plan. In the case of a plan providing retirement benefits based on compensation during any period, the normal retirement benefit to which a participant would be entitled shall be determined as if he continued to earn annually the average rate of compensation which he earned during consecutive years of service, not in excess of 10, for which his compensation was the highest. For purposes of this subparagraph, social security benefits and all other relevant factors used to compute benefits shall be treated as remaining constant as of the current year for all years after such current year. " (B) 1331/^ PERCENT RULE.—A defined benefit plan satisfies the requirements of this paragraph for a particular plan year if under the plan the accrued benefit payable at the normal retirement age is equal to the normal retirement benefit and the annual rate at which any individual who is or could be a participant can accrue the retirement benefits payable at normal retirement age under the plan for any later plan year is not more than I33I/3 percent of the annual rate at which he can accrue benefits for any plan year beginning on or after such particular plan year and before such later plan year. For purposes of this subparagraph— " (i) any amendment to the plan which is in effect for the current year shall be treated as in effect for all other plan years; "(ii) any change in an accrual rate which does not apply to any individual who is or could be a participant in the current year shall be disregarded;
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