(a) General rule. An eligible employer that completely withdraws from a multiemployer plan and subsequently reenters the plan may, in lieu of making withdrawal liability payments due after its reentry, provide a bond to, or establish an escrow account for, the plan that satisfies the requirements of paragraph (b) of this section or any plan rules adopted under paragraph (d) of this section, pending a determination by the plan sponsor under § 4207.3(b) of whether the employer satisfies the requirements for abatement of its complete withdrawal liability. An employer that applies for abatement and neither provides a bond/escrow nor pays its withdrawal liability payments remains eligible for abatement.

(b) Bond/escrow. The bond or escrow allowed by this section shall be in an amount equal to 70 percent of the withdrawal liability payments that would otherwise be due. The bond or escrow relating to each payment shall be furnished before the due date of that payment. A single bond or escrow may be provided for more than one payment due during the pendency of the plan sponsor's determination. The bond or escrow agreement shall provide that if the plan sponsor determines that the employer does not satisfy the requirements for abatement of its complete withdrawal liability under this part, the bond or escrow shall be paid to the plan upon notice from the plan sponsor to the bonding or escrow agent. A bond provided under this paragraph shall be issued by a corporate surety company that is an acceptable surety for purposes of section 412 of ERISA.

(c) Notice of bond/escrow. Concurrently with posting a bond or establishing an escrow account under paragraph (b) of this section, the employer shall notify the plan sponsor. The notice shall include a statement of the amount of the bond or escrow, the scheduled payment or payments with respect to which the bond or escrow is being furnished, and the name and address of the bonding or escrow agent.

(d) Plan amendments concerning bond/escrow. A plan may, by amendment, adopt rules decreasing the amount specified in paragraph (b) of a bond or escrow allowed under this section. A plan amendment adopted under this paragraph may be applied only to the extent that it is consistent with the purposes of ERISA.