Title 29LaborRelease 119-73

§1363 Liability of substantial employer for withdrawal from single-employer plans under multiple controlled groups

Title 29 › Chapter CHAPTER 18— - EMPLOYEE RETIREMENT INCOME SECURITY PROGRAM › Subchapter SUBCHAPTER III— - PLAN TERMINATION INSURANCE › Subtitle Subtitle D— - Liability › § 1363

Last updated Apr 6, 2026|Official source

Summary

The plan administrator must tell the Pension Benefit Guaranty Corporation within 60 days when a substantial employer leaves a single-employer plan that has two or more contributing sponsors who are not under common control. The administrator must also ask the corporation to figure out who is responsible for paying. Any withdrawing sponsor who was a substantial employer, and the companies in its controlled group, can be held responsible for a share of the plan’s liability. The corporation figures the total liability as if the plan were ended on the withdrawal date (under the rules in section 1362) and then multiplies that by a fraction: the withdrawing sponsors’ required contributions for the last 5 years before the withdrawal divided by all sponsors’ required contributions for those same 5 years. Instead of paying right away, a withdrawing sponsor may be required to post a bond up to 150 percent of its liability with an approved federal surety. If the plan does not terminate under sections 1341(c) or 1342 within 5 years after the withdrawal, the liability ends and any escrowed money is returned without interest or the bond is cancelled. If the plan does terminate under those sections within 5 years, the corporation can collect the funds or the bond, hold them as plan assets, use them under the pension rules, and return any unused amount to the sponsor. The corporation may use a different, more suitable procedure instead of these rules when appropriate, including splitting plan funds fairly between workers who left and those who stayed and treating each share separately. The corporation can also waive these rules if there is an adequate indemnity agreement among the contributing sponsors.

Full Legal Text

Title 29, §1363

Labor — Source: USLM XML via OLRC

(a)Except as provided in subsection (d), the plan administrator of a single-employer plan which has two or more contributing sponsors at least two of whom are not under common control—
(1)shall notify the corporation of the withdrawal during a plan year of a substantial employer for such plan year from the plan, within 60 days after such withdrawal, and
(2)request that the corporation determine the liability of all persons with respect to the withdrawal of the substantial employer.
(b)Except as provided in subsection (c), any one or more contributing sponsors who withdraw, during a plan year for which they constitute a substantial employer, from a single-employer plan which has two or more contributing sponsors at least two of whom are not under common control, shall, upon notification of such contributing sponsors by the corporation as provided by subsection (a), be liable, together with the members of their controlled groups, to the corporation in accordance with the provisions of section 1362 of this title and this section. The amount of liability shall be computed on the basis of an amount determined by the corporation to be the amount described in section 1362 of this title for the entire plan, as if the plan had been terminated by the corporation on the date of the withdrawal referred to in subsection (a)(1) multiplied by a fraction—
(1)the numerator of which is the total amount required to be contributed to the plan by such contributing sponsors for the last 5 years ending prior to the withdrawal, and
(2)the denominator of which is the total amount required to be contributed to the plan by all contributing sponsors for such last 5 years.
(c)(1)In lieu of payment of a contributing sponsor’s liability under this section, the contributing sponsor may be required to furnish a bond to the corporation in an amount not exceeding 150 percent of his liability to insure payment of his liability under this section. The bond shall have as surety thereon a corporate surety company which is an acceptable surety on Federal bonds under authority granted by the Secretary of the Treasury under section 9304–9308 of title 31. Any such bond shall be in a form or of a type approved by the Secretary including individual bonds or schedule or blanket forms of bonds which cover a group or class.
(2)If the plan is not terminated under section 1341(c) or 1342 of this title within the 5-year period commencing on the day of withdrawal, the liability is abated and any payment held in escrow shall be refunded without interest (or the bond cancelled) in accordance with bylaws or rules prescribed by the corporation.
(3)If the plan terminates under section 1341(c) or 1342 of this title within the 5-year period commencing on the day of withdrawal, the corporation shall—
(A)demand payment or realize on the bond and hold such amount in escrow for the benefit of the plan;
(B)treat any escrowed payments under this section as if they were plan assets and apply them in a manner consistent with this subtitle; and
(C)refund any amount to the contributing sponsor which is not required to meet any obligation of the corporation with respect to the plan.
(d)The provisions of this subsection apply in the case of a withdrawal described in subsection (a), and the provisions of subsections (b) and (c) shall not apply, if the corporation determines that the procedure provided for under this subsection is consistent with the purposes of this section and section 1364 of this title and is more appropriate in the particular case. Upon a showing by the plan administrator of the plan that the withdrawal from the plan by one or more contributing sponsors has resulted, or will result, in a significant reduction in the amount of aggregate contributions to or under the plan, the corporation may—
(1)require the plan fund to be equitably allocated between those participants no longer working in covered service under the plan as a result of the withdrawal, and those participants who remain in covered service under the plan;
(2)treat that portion of the plan funds allocable under paragraph (1) to participants no longer in covered service as a plan terminated under section 1342 of this title; and
(3)treat that portion of the plan fund allocable to participants remaining in covered service as a separate plan.
(e)The corporation is authorized to waive the application of the provisions of subsections (b), (c), and (d) of this section whenever it determines that there is an indemnity agreement in effect among contributing sponsors under the plan which is adequate to satisfy the purposes of this section and of section 1364 of this title.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Codification In subsec. (c)(1), “section 9304–9308 of title 31” substituted for “sections 6 through 13 of title 6, United States Code” on authority of Pub. L. 97–258, § 4(b), Sept. 13, 1982, 96 Stat. 1067, the first section of which enacted Title 31, Money and Finance.

Amendments

1986—Pub. L. 99–272, § 11016(a)(5)(A)(vi), inserted “from single-employer plans under multiple controlled groups” in section catchline. Subsec. (a). Pub. L. 99–272, § 11016(a)(5)(A)(i), in introductory par., substituted “single-employer plan which has two or more contributing sponsors at least two of whom are not under common control” for “plan under which more than one employer makes contributions (other than a multiemployer plan)”, in par. (1), substituted “withdrawal during a plan year of a substantial employer for such plan year” for “withdrawal of a substantial employer”, in par. (2), substituted “of all persons with respect to the withdrawal of the substantial employer” for “of such employer under this subtitle with respect to such withdrawal”, and in concluding provision substituted “whether there is liability resulting from the withdrawal of the substantial employer” for “whether such employer is liable for any amount under this subtitle with respect to the withdrawal” and “notify the liable persons” for “notify such employer”. Subsec. (b). Pub. L. 99–272, § 11016(a)(5)(A)(ii), in introductory par., substituted “any one or more contributing sponsors who withdraw, during a plan year for which they constitute a substantial employer, from a single-employer plan which has two or more contributing sponsors at least two of whom are not under common control, shall, upon notification of such contributing sponsors by the corporation as provided by subsection (a), be liable, together with the members of their controlled groups,” for “an employer who withdraws from a plan to which section 1321 of this title applies, during a plan year for which he was a substantial employer, and who is notified by the corporation as provided by subsection (a), shall be liable”, “amount of liability” for “amount of such employer’s liability”, and “the withdrawal referred to in subsection (a)(1)” for “the employer’s withdrawal”, in par. (1), substituted “such contributing sponsors” for “such employer”, in par. (2), substituted “all contributing sponsors” for “all employers”, and in concluding provision substituted “such liability” for “the liability of each such employer”. Subsec. (c)(1). Pub. L. 99–272, § 11016(a)(5)(A)(iii)(I), substituted “of a contributing sponsor’s liability under this section, the contributing sponsor” for “of his liability under this section the employer”. Subsec. (c)(2). Pub. L. 99–272, § 11016(a)(5)(A)(iii)(II), inserted “under section 1341(c) or 1342 of this title” and substituted “liability is” for “liability of such employer is” and “(or the bond cancelled)” for “to the employer (or his bond cancelled)”. Subsec. (c)(3). Pub. L. 99–272, § 11016(a)(5)(A)(iii)(III), in introductory par., inserted “under section 1341(c) or 1342 of this title” and, in subpar. (C), substituted “contributing sponsor” for “employer”. Subsec. (d). Pub. L. 99–272, § 11016(a)(5)(A)(iv), in introductory par., substituted “of the plan that the withdrawal from the plan by one or more contributing sponsors” for “of a plan (other than a multiemployer plan) that the withdrawal from the plan by any employer or employers” and struck out “by employers” after “contributions to or under the plan”, in par. (1), substituted “the withdrawal” for “their employer’s withdrawal”, and in par. (2), substituted “plan terminated under section 1342 of this title” for “termination”. Subsec. (e). Pub. L. 99–272, § 11016(a)(5)(A)(v), struck out “to any employer or plan administrator” before “whenever it determines” and substituted “contributing sponsors” for “all other employers”. 1980—Subsecs. (a), (d). Pub. L. 96–364 inserted provisions excepting a multiemployer plan.

Statutory Notes and Related Subsidiaries

Effective Date

of 1986 AmendmentAmendment by Pub. L. 99–272 effective Jan. 1, 1986, with certain exceptions, see section 11019 of Pub. L. 99–272, set out as a note under section 1341 of this title.

Effective Date

of 1980 AmendmentAmendment by Pub. L. 96–364 effective Sept. 26, 1980, except as specifically provided, see section 1461(e) of this title.

Reference

Citations & Metadata

Citation

29 U.S.C. § 1363

Title 29Labor

Last Updated

Apr 6, 2026

Release point: 119-73