29 C.F.R. § 4203.1 Purpose and scope.
Title 29 - Labor
(a) Purpose. The purpose of this part is to prescribe procedures whereby a multiemployer plan may, pursuant to sections 4203(f) and 4208(e)(3) of ERISA, request the PBGC to approve a plan amendment which establishes special complete or partial withdrawal liability rules. (b) Scope. This part applies to a multiemployer pension plan covered by title IV of ERISA.
Title 29: Labor
PART 4203—EXTENSION OF SPECIAL WITHDRAWAL LIABILITY RULES
§ 4203.1 Purpose and scope.