The plan sponsor of a multiemployer plan that terminates by mass withdrawal must continue to administer the plan in accordance with applicable statutory provisions, regulations, and plan provisions until a trustee is appointed under section 4042 of ERISA or until plan assets are distributed in accordance with subpart D of this part. In addition, the plan sponsor is responsible for the specific duties described in this subpart.
29 C.F.R. § 4041A.21 — General rule. · eCFR amendment effective 2019-07-01 · https://pensionresource.website/EAMain?content=EAMain.Law&id=cfr29-4041A.21&asof=2019-07-01 · printed Oct 16, 2026