29 CFR § 4203.3 - Plan adoption of special withdrawal rules.

---
identifier: "/us/cfr/t29/s4203.3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "29 CFR § 4203.3 - Plan adoption of special withdrawal rules."
title_number: 29
title_name: "Labor"
section_number: "4203.3"
section_name: "Plan adoption of special withdrawal rules."
chapter_name: "PENSION BENEFIT GUARANTY CORPORATION"
subchapter_number: "I"
subchapter_name: "WITHDRAWAL LIABILITY FOR MULTIEMPLOYER PLANS"
part_number: "4203"
part_name: "EXTENSION OF SPECIAL WITHDRAWAL LIABILITY RULES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "29 U.S.C. 1302(b)(3)."
regulatory_source: "61 FR 34083, July 1, 1996, unless otherwise noted."
cfr_part: "4203"
---


# 4203.3 Plan adoption of special withdrawal rules.

(a) *General rule.* A plan may, subject to the approval of the PBGC, establish by plan amendment special complete or partial withdrawal liability rules. A complete withdrawal liability rule adopted pursuant to this part shall be similar to the rules for the construction and entertainment industries described in section 4203 (b) and (c) of ERISA. A partial withdrawal liability rule adopted pursuant to this part shall be consistent with the complete withdrawal rule adopted by the plan. A plan amendment adopted under this part may not be put into effect until it is approved by the PBGC.

(b) *Discretionary provisions of the plan amendment.* A plan amendment adopted pursuant to this part may—

(1) Cover an entire industry or industries, or be limited to a segment of an industry; and

(2) Apply to cessations of the obligation to contribute that occurred prior to the adoption of the amendment.