94 STAT. 1232
Regulations.
26 USC 404.
Liabilities, transfer.
PUBLIC LAW 96-364—SEPT. 26, 1980
"(iii) the value of all outstanding claims for withdrawal liability which can reasonably be expected to be collected with respect to employers withdrawing before the year preceding the plan year in which the employer withdraws. "(F) The employer's proportional share described in subparagraph (A)(ii) for a plan year is the amount determined under subparagraph (E) for the employer, but not in excess of an amount which bears the same ratio to the sum of the amounts determined under subparagraph (E) for all employers under the plan as the amount determined under subparagraph (C) for the employer bears to the sum of the amounts determined under subparagraph (C) for all employers under the plan. "(G) The corporation may prescribe by regulation other methods which a plan may adopt for allocating assets to determine the amount of the unfunded vested benefits attributable to service with the employer and to determine the employer's share of unfunded vested benefits not attributable to service with employers who have an obligation to contribute under the plan in the plan year in which the employer withdraws. ' (5)(A) The corporation shall prescribe by regulation a procedure by which a plan may, by amendment, adopt any other alternative method for determining an employer's allocable share of unfunded vested benefits under this section, subject to the approval of the corporation based on its determination that adoption of the method by the plan would not significantly increase the risk of loss to plan participants and beneficiaries or to the corporation. "(B) The corporation may prescribe l?y regulation standard approaches for alternative methods, other than those set forth in the preceding paragraphs of this subsection, which a plan may adopt under subparagraph (A), for which the corporation may waive or modify the approval requirements of subparagraph (A). Any alternative method shall provide for the allocation of substantially all of a plan's unfunded vested benefits among employers who have an obligation to contribute under the plan. "(C) Unless the corporation by regulation provides otherwise, a plan may be amended to provide that a period of more than 5 but not more than 10 plan years may be used for determining the numerator and denominator of any fraction which is used under any method authorized under this section for determining an employer's allocable share of unfunded vested benefits under this section. "(D) The corporation may by regulation permit adjustments in any denominator under this section, consistent with the purposes of this title, where such adjustment would be appropriate to ease administrative burdens of plan sponsors in calculating such denominators. "(d)(1) The method of calculating an employer's allocable share of unfunded vested benefits set forth in subsection (c)(3) shall be the method for calculating an employer's allocable share of unfunded vested benefits under a plan to which section 404(c) of the Internal Revenue Code of 1954, or a continuation of such a plan, applies, unless the plan is amended to adopt another method authorized under subsection (b) or (c). "(2) Sections 4204, 4209, 4219(c)(1)(B), and 4225 shall not apply with respect to the withdrawal of an employer from a plan described in paragraph (1) unless the plan is amended to provide that any of such sections apply. "(e) In the case of a transfer of liabilities to another plan incident to an employer's withdrawal or partial withdrawal, the withdrawn employer's liability under this part shall be reduced in an amount
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