(b) Conversion of mandatory employee contributions to an annuity benefit. Subject to the limitation set forth in
paragraph (b)(3) of this section, a participant's accumulated mandatory employee contributions shall be converted to an annuity form of benefit payable at the normal retirement age or, if the plan provides for early retirement, at the expected retirement age. The conversion shall be made using the interest rates and factors specified in
paragraph (b)(2) of this section. The form of the annuity benefit (e.g., straight life annuity, joint and survivor annuity, cash refund annuity, etc.) is the form that the participant or beneficiary is entitled to on the termination date. If the participant does not have a nonforfeitable right to a benefit, other than the return of his or her mandatory contributions in a lump sum, the annuity form of benefit is the form the participant would be entitled to if the participant had a nonforfeitable right to an annuity benefit under the plan on the termination date.
(1) Accumulated mandatory employee contributions. Subject to any addition for the cost of ancillary benefits plus interest, as provided in the following sentence, the amount of the accumulated mandatory employee contributions for each participant is the participant's total nonforfeitable mandatory employee contributions remaining in the plan on the termination date plus interest, if any, under the plan provisions. Mandatory employee contributions, if any, used after the effective date of the minimum vesting standards in
section 203 of ERISA and
section 411 of the Code for costs or to provide ancillary benefits such as life insurance or health insurance, plus interest under the plan provisions, shall be added to the contributions that remain in the plan to determine the accumulated mandatory employee contributions.