Code of Federal Regulations Title 29. Labor § 29.4219.18 Withdrawal in a plan year in which substantially all employers withdraw

(a) General rule. An employer that withdraws in a plan year in which substantially all employers withdraw from the plan shall be liable to the plan for de minimis amounts if the employer's initial withdrawal liability was reduced pursuant to section 4209(a) or (b) of ERISA.

(b) Amount of liability. An employer's liability for de minimis amounts under this section shall be determined pursuant to § 4219.13.

(c) Plan sponsor's obligations. The plan sponsor of a plan that experiences a withdrawal described in paragraph (a) shall—

(d) Notice of withdrawal. Within 30 days after the end of a plan year in which a plan experiences a withdrawal described in paragraph (a), the plan sponsor shall notify in writing each employer that is or may be liable under this section. The notice shall specify the plan year in which substantially all employers have withdrawn, describe the consequences of such withdrawal under this section, and state that an employer obligated to make initial withdrawal liability payments shall continue to make those payments in accordance with its schedule.

(e) Notice of liability. Within 30 days after the determination of liability, the plan sponsor shall issue a notice of liability in writing to each liable employer. The notice shall include—

(f) Review of liability determinations. Determinations of liability made pursuant to this section shall be subject to plan review under section 4219(b)(2) of ERISA and to arbitration under section 4221 of ERISA, subject to the limitations contained in § 4219.16(g).

(g) Notice to the PBGC. No later than 30 days after the notices of liability under this section are required to be provided to liable employers, the plan sponsor shall file with the PBGC a notice. The notice shall include the items described in § 4219.17 (g)(1) through (g)(3), as well as the information listed below. In addition, the PBGC may require the plan sponsor to submit any further information that the PBGC determines it needs in order to monitor compliance with this section.