26 CFR § 1.411(a)-4T - Forfeitures, suspensions, etc. (temporary).
(a) Nonforfeitability. Certain rights in an accrued benefit must be nonforfeitable to satisfy the requirements of section 411(a). This section defines the term “nonforfeitable” for purposes of these requirements. For purposes of section 411 and the regulations thereunder, a right to an accrued benefit is considered to be nonforfeitable at a particular time if, at that time and thereafter, it is an unconditional right. Except as provided by paragraph (b) of this section, a right which, at a particular time, is conditioned under the plan upon a subsequent event, subsequent performance, or subsequent forbearance which will cause the loss of such right is a forfeitable right at that time. Certain adjustments to plan benefits, such as adjustments in excess of reasonable actuarial reductions, can result in rights being forfeitable. Rights which are conditioned upon a sufficiency of plan assets in the event of a termination or partial termination are considered to be forfeitable because of such condition. However, a plan does not violate the nonforfeitability requirements merely because in the event of a termination an employee does not have any recourse toward satisfaction of his nonforfeitable benefits from other than the plan assets, the Pension Benefit Guaranty Corporation, or a trust established and maintained pursuant to sections 4041(c)(3)(B) (ii) or (iii) and section 4049 of ERISA with respect to the plan. Furthermore, nonforfeitable rights are not considered to be forfeitable by reason of the fact that they may be reduced as allowed under sections 401(a)(5) and 401(l). To the extent that rights are not required to be nonforfeitable to satisfy the minimum vesting standards, or the nondiscrimination requirements of section 401(a)(4), they may be forfeited without regard to the limitations on forfeitability required by this section. The right of an employee to repurchase his accrued benefit for example under section 411(a)(3)(D), is an example of a right which is required to satisfy such standards. Accordingly, such a right is subject to the limitations on forfeitability. Rights which are required to be prospectively nonforfeitable under the vesting standards are nonforfeitable and may not be forfeited until it is determined that such rights are, in fact, in excess of the vesting standards. Thus, employees have a right to vest in the accrued benefits if they continue in employment of employers maintaining the plan unless a forfeitable event recognized by section 411 occurs. For example, if a plan covered employees in Division A of Corporation X under a plan utilizing a 5-year 100 percent vesting schedule, the plan could not forfeit employees' rights on account of their moving to service in Division B of Corporation X prior to completion of 5 years of service even though employees are not vested at that time.
(c) Examples. The rules of this section ae illustrated by the following examples:
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