Definitions and special rule

Except as otherwise provided in paragraph (2)(C), the term “make-whole contributions” means nonelective allocations for each employee in the class which are reasonably calculated, in a consistent manner, to replace some or all of the retirement benefits which the employee would have received under the defined benefit plan and any other plan or qualified cash or deferred arrangement under subsection (k)(2) if no change had been made to such defined benefit plan and such other plan or arrangement. For purposes of the preceding sentence, consistency shall not be required with respect to employees who were subject to different benefit formulas under the defined benefit plan.

References to a closed class of participants and similar references to a closed class shall include arrangements under which 1 or more classes of participants are closed, except that 1 or more classes of participants closed on different dates shall not be aggregated for purposes of determining the date any such class was closed.