ERISA § 4215 (29 U.S.C. § 1395)
Plan notification to corporation of potentially significant withdrawals
USC 2024 ed., current through 2025-01-06 · current text · last amended by Pub. L. 96-364
The corporation may, by regulation, require the plan sponsor of a multiemployer plan to provide notice to the corporation when the withdrawal from the plan by any employer has resulted, or will result, in a significant reduction in the amount of aggregate contributions under the plan made by employers.