Title 29 › CHAPTER 18 — EMPLOYEE RETIREMENT INCOME SECURITY PROGRAM › SUBCHAPTER III — PLAN TERMINATION INSURANCE › Subtitle E — Special Provisions for Multiemployer Plans › part 1 — employer withdrawals › § 1393
Sets rules for how a plan actuary figures the unfunded vested benefits used to compute an employer’s withdrawal liability. The corporation can make rules about the actuarial assumptions. The actuary may either use reasonable, best-estimate assumptions based on the plan’s experience, or use the assumptions and methods in the corporation’s rules. The actuary may use the most recent full actuarial valuation done for section 412 of title 26 and make reasonable estimates for years after that. If full data are missing, the actuary can use whatever data are available or a sampling that represents the whole plan. Unfunded vested benefits means the value of nonforfeitable benefits minus the value of the plan’s assets.
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Legislative History
Reference
Citation
29 U.S.C. § 1393
Title 29, Labor
Last Updated
Sep 22, 2026
Release point: 119-110